id	sid	tid	token	lemma	pos
ajis02-298	1	1	a	a	DET
ajis02-298	1	2	case	case	NOUN
ajis02-298	1	3	study	study	NOUN
ajis02-298	1	4	on	on	ADP
ajis02-298	1	5	the	the	DET
ajis02-298	1	6	application	application	NOUN
ajis02-298	1	7	of	of	ADP
ajis02-298	1	8	pvs	pvs	PROPN
ajis02-298	1	9	to	to	PART
ajis02-298	1	10	requirements	requirement	NOUN
ajis02-298	1	11	analysis	analysis	NOUN
ajis02-298	1	12	georg	georg	NOUN
ajis02-298	1	13	droschl	droschl	NOUN
ajis02-298	1	14	droschl	droschl	PROPN
ajis02-298	1	15	@ist.tu	@ist.tu	PROPN
ajis02-298	1	16	-	-	PUNCT
ajis02-298	1	17	graz.ac.at	graz.ac.at	PROPN
ajis02-298	1	18	austrian	austrian	ADJ
ajis02-298	1	19	research	research	NOUN
ajis02-298	1	20	center	center	PROPN
ajis02-298	1	21	seibersdorf	seibersdorf	PROPN
ajis02-298	1	22	and	and	CCONJ
ajis02-298	1	23	institute	institute	PROPN
ajis02-298	1	24	for	for	ADP
ajis02-298	1	25	software	software	NOUN
ajis02-298	1	26	technology	technology	NOUN
ajis02-298	1	27	,	,	PUNCT
ajis02-298	1	28	technical	technical	ADJ
ajis02-298	1	29	university	university	PROPN
ajis02-298	1	30	of	of	ADP
ajis02-298	1	31	graz	graz	PROPN
ajis02-298	1	32	miinzgrabenstr	miinzgrabenstr	NOUN
ajis02-298	1	33	.	.	PUNCT
ajis02-298	2	1	11/2	11/2	NUM
ajis02-298	2	2	,	,	PUNCT
ajis02-298	2	3	8010	8010	NUM
ajis02-298	2	4	graz	graz	PROPN
ajis02-298	2	5	,	,	PUNCT
ajis02-298	2	6	austria	austria	PROPN
ajis02-298	2	7	,	,	PUNCT
ajis02-298	2	8	europe	europe	PROPN
ajis02-298	2	9	abstract	abstract	ADP
ajis02-298	2	10	this	this	DET
ajis02-298	2	11	paper	paper	NOUN
ajis02-298	2	12	presents	present	VERB
ajis02-298	2	13	the	the	DET
ajis02-298	2	14	results	result	NOUN
ajis02-298	2	15	of	of	ADP
ajis02-298	2	16	a	a	DET
ajis02-298	2	17	formal	formal	ADJ
ajis02-298	2	18	methods	method	NOUN
ajis02-298	2	19	case	case	NOUN
ajis02-298	2	20	study	study	NOUN
ajis02-298	2	21	in	in	ADP
ajis02-298	2	22	which	which	PRON
ajis02-298	2	23	the	the	DET
ajis02-298	2	24	prototype	prototype	NOUN
ajis02-298	2	25	verification	verification	NOUN
ajis02-298	2	26	system	system	NOUN
ajis02-298	2	27	(	(	PUNCT
ajis02-298	2	28	pvs	pvs	PROPN
ajis02-298	2	29	)	)	PUNCT
ajis02-298	2	30	has	have	AUX
ajis02-298	2	31	been	be	AUX
ajis02-298	2	32	used	use	VERB
ajis02-298	2	33	for	for	ADP
ajis02-298	2	34	requirements	requirement	NOUN
ajis02-298	2	35	analysis	analysis	NOUN
ajis02-298	2	36	of	of	ADP
ajis02-298	2	37	one	one	NUM
ajis02-298	2	38	module	module	NOUN
ajis02-298	2	39	of	of	ADP
ajis02-298	2	40	a	a	DET
ajis02-298	2	41	physical	physical	ADJ
ajis02-298	2	42	access	access	NOUN
ajis02-298	2	43	control	control	NOUN
ajis02-298	2	44	system	system	NOUN
ajis02-298	2	45	.	.	PUNCT
ajis02-298	3	1	pvs	pvs	PROPN
ajis02-298	3	2	is	be	AUX
ajis02-298	3	3	a	a	DET
ajis02-298	3	4	tool	tool	NOUN
ajis02-298	3	5	for	for	ADP
ajis02-298	3	6	writing	write	VERB
ajis02-298	3	7	formal	formal	ADJ
ajis02-298	3	8	specifications	specification	NOUN
ajis02-298	3	9	and	and	CCONJ
ajis02-298	3	10	constructing	construct	VERB
ajis02-298	3	11	proofs	proof	NOUN
ajis02-298	3	12	.	.	PUNCT
ajis02-298	4	1	previously	previously	ADV
ajis02-298	4	2	,	,	PUNCT
ajis02-298	4	3	the	the	DET
ajis02-298	4	4	same	same	ADJ
ajis02-298	4	5	requirements	requirement	NOUN
ajis02-298	4	6	have	have	AUX
ajis02-298	4	7	been	be	AUX
ajis02-298	4	8	analyzed	analyze	VERB
ajis02-298	4	9	by	by	ADP
ajis02-298	4	10	means	mean	NOUN
ajis02-298	4	11	of	of	ADP
ajis02-298	4	12	testing	testing	NOUN
ajis02-298	4	13	supported	support	VERB
ajis02-298	4	14	by	by	ADP
ajis02-298	4	15	the	the	DET
ajis02-298	4	16	ifad	ifad	ADJ
ajis02-298	4	17	toolbox	toolbox	NOUN
ajis02-298	4	18	for	for	ADP
ajis02-298	4	19	vdm	vdm	NOUN
ajis02-298	4	20	-	-	PUNCT
ajis02-298	4	21	sl	sl	NOUN
ajis02-298	4	22	.	.	PUNCT
ajis02-298	5	1	the	the	DET
ajis02-298	5	2	capabilities	capability	NOUN
ajis02-298	5	3	of	of	ADP
ajis02-298	5	4	the	the	DET
ajis02-298	5	5	two	two	NUM
ajis02-298	5	6	formal	formal	ADJ
ajis02-298	5	7	methods	method	NOUN
ajis02-298	5	8	are	be	AUX
ajis02-298	5	9	compared	compare	VERB
ajis02-298	5	10	.	.	PUNCT
ajis02-298	6	1	introduction	introduction	NOUN
ajis02-298	6	2	formal	formal	ADJ
ajis02-298	6	3	methods	method	NOUN
ajis02-298	6	4	informal	informal	ADJ
ajis02-298	6	5	requirements	requirement	NOUN
ajis02-298	6	6	are	be	AUX
ajis02-298	6	7	inappropriate	inappropriate	ADJ
ajis02-298	6	8	to	to	PART
ajis02-298	6	9	serve	serve	VERB
ajis02-298	6	10	as	as	ADP
ajis02-298	6	11	a	a	DET
ajis02-298	6	12	basis	basis	NOUN
ajis02-298	6	13	for	for	ADP
ajis02-298	6	14	software	software	NOUN
ajis02-298	6	15	development	development	NOUN
ajis02-298	6	16	.	.	PUNCT
ajis02-298	7	1	still	still	ADV
ajis02-298	7	2	,	,	PUNCT
ajis02-298	7	3	most	most	ADJ
ajis02-298	7	4	requirements	requirement	NOUN
ajis02-298	7	5	documents	document	NOUN
ajis02-298	7	6	are	be	AUX
ajis02-298	7	7	expressed	express	VERB
ajis02-298	7	8	in	in	ADP
ajis02-298	7	9	natural	natural	ADJ
ajis02-298	7	10	language	language	NOUN
ajis02-298	7	11	.	.	PUNCT
ajis02-298	8	1	"	"	PUNCT
ajis02-298	8	2	formal	formal	ADJ
ajis02-298	8	3	methods	method	NOUN
ajis02-298	8	4	are	be	AUX
ajis02-298	8	5	one	one	NUM
ajis02-298	8	6	of	of	ADP
ajis02-298	8	7	a	a	DET
ajis02-298	8	8	number	number	NOUN
ajis02-298	8	9	of	of	ADP
ajis02-298	8	10	techniques	technique	NOUN
ajis02-298	8	11	that	that	PRON
ajis02-298	8	12	when	when	SCONJ
ajis02-298	8	13	applied	apply	VERB
ajis02-298	8	14	correctly	correctly	ADV
ajis02-298	8	15	have	have	AUX
ajis02-298	8	16	been	be	AUX
ajis02-298	8	17	demonstrated	demonstrate	VERB
ajis02-298	8	18	to	to	PART
ajis02-298	8	19	result	result	VERB
ajis02-298	8	20	in	in	ADP
ajis02-298	8	21	systems	system	NOUN
ajis02-298	8	22	of	of	ADP
ajis02-298	8	23	the	the	DET
ajis02-298	8	24	highest	high	ADJ
ajis02-298	8	25	integrity	integrity	NOUN
ajis02-298	8	26	"	"	PUNCT
ajis02-298	8	27	(	(	PUNCT
ajis02-298	8	28	bowen	bowen	NOUN
ajis02-298	8	29	and	and	CCONJ
ajis02-298	8	30	hinchey	hinchey	PROPN
ajis02-298	8	31	,	,	PUNCT
ajis02-298	8	32	1995	1995	NUM
ajis02-298	8	33	)	)	PUNCT
ajis02-298	8	34	.	.	PUNCT
ajis02-298	9	1	formal	formal	ADJ
ajis02-298	9	2	methods	method	NOUN
ajis02-298	9	3	exploit	exploit	VERB
ajis02-298	9	4	the	the	DET
ajis02-298	9	5	power	power	NOUN
ajis02-298	9	6	discrete	discrete	NOUN
ajis02-298	9	7	mathematics	mathematic	NOUN
ajis02-298	9	8	.	.	PUNCT
ajis02-298	10	1	their	their	PRON
ajis02-298	10	2	mathematical	mathematical	ADJ
ajis02-298	10	3	basis	basis	NOUN
ajis02-298	10	4	includes	include	VERB
ajis02-298	10	5	the	the	DET
ajis02-298	10	6	disciplines	discipline	NOUN
ajis02-298	10	7	of	of	ADP
ajis02-298	10	8	set	set	NOUN
ajis02-298	10	9	theory	theory	NOUN
ajis02-298	10	10	,	,	PUNCT
ajis02-298	10	11	abstract	abstract	ADJ
ajis02-298	10	12	algebras	algebra	NOUN
ajis02-298	10	13	,	,	PUNCT
ajis02-298	10	14	the	the	DET
ajis02-298	10	15	lambdacalculus	lambdacalculus	ADJ
ajis02-298	10	16	,	,	PUNCT
ajis02-298	10	17	petri	petri	ADJ
ajis02-298	10	18	nets	net	NOUN
ajis02-298	10	19	,	,	PUNCT
ajis02-298	10	20	etc	etc	X
ajis02-298	10	21	.	.	X
ajis02-298	11	1	the	the	DET
ajis02-298	11	2	term	term	NOUN
ajis02-298	11	3	'	'	PUNCT
ajis02-298	11	4	formal	formal	ADJ
ajis02-298	11	5	methods	method	NOUN
ajis02-298	11	6	'	'	PUNCT
ajis02-298	11	7	embraces	embrace	VERB
ajis02-298	11	8	formal	formal	ADJ
ajis02-298	11	9	specification	specification	NOUN
ajis02-298	11	10	and	and	CCONJ
ajis02-298	11	11	verified	verified	ADJ
ajis02-298	11	12	design	design	NOUN
ajis02-298	11	13	.	.	PUNCT
ajis02-298	12	1	the	the	DET
ajis02-298	12	2	two	two	NUM
ajis02-298	12	3	main	main	ADJ
ajis02-298	12	4	approaches	approach	NOUN
ajis02-298	12	5	to	to	ADP
ajis02-298	12	6	formal	formal	ADJ
ajis02-298	12	7	specification	specification	NOUN
ajis02-298	12	8	are	be	AUX
ajis02-298	12	9	called	call	VERB
ajis02-298	12	10	model	model	NOUN
ajis02-298	12	11	-	-	PUNCT
ajis02-298	12	12	oriented	orient	VERB
ajis02-298	12	13	,	,	PUNCT
ajis02-298	12	14	and	and	CCONJ
ajis02-298	12	15	property	property	NOUN
ajis02-298	12	16	oriented	orient	VERB
ajis02-298	12	17	.	.	PUNCT
ajis02-298	13	1	model	model	NOUN
ajis02-298	13	2	-	-	PUNCT
ajis02-298	13	3	oriented	orient	VERB
ajis02-298	13	4	specification	specification	NOUN
ajis02-298	13	5	models	model	NOUN
ajis02-298	13	6	the	the	DET
ajis02-298	13	7	behavior	behavior	NOUN
ajis02-298	13	8	of	of	ADP
ajis02-298	13	9	the	the	DET
ajis02-298	13	10	system	system	NOUN
ajis02-298	13	11	by	by	ADP
ajis02-298	13	12	choosing	choose	VERB
ajis02-298	13	13	specific	specific	ADJ
ajis02-298	13	14	data	datum	NOUN
ajis02-298	13	15	domains	domain	NOUN
ajis02-298	13	16	,	,	PUNCT
ajis02-298	13	17	and	and	CCONJ
ajis02-298	13	18	by	by	ADP
ajis02-298	13	19	defining	define	VERB
ajis02-298	13	20	functions	function	NOUN
ajis02-298	13	21	and	and	CCONJ
ajis02-298	13	22	operations	operation	NOUN
ajis02-298	13	23	on	on	ADP
ajis02-298	13	24	the	the	DET
ajis02-298	13	25	data	datum	NOUN
ajis02-298	13	26	domains	domain	NOUN
ajis02-298	13	27	.	.	PUNCT
ajis02-298	14	1	model	model	NOUN
ajis02-298	14	2	-	-	PUNCT
ajis02-298	14	3	oriented	orient	VERB
ajis02-298	14	4	specification	specification	NOUN
ajis02-298	14	5	languages	language	NOUN
ajis02-298	14	6	include	include	VERB
ajis02-298	14	7	ccs	ccs	PROPN
ajis02-298	14	8	,	,	PUNCT
ajis02-298	14	9	csp	csp	PROPN
ajis02-298	14	10	,	,	PUNCT
ajis02-298	14	11	b	b	PROPN
ajis02-298	14	12	,	,	PUNCT
ajis02-298	14	13	vdm	vdm	NOUN
ajis02-298	14	14	-	-	PUNCT
ajis02-298	14	15	sl	sl	NOUN
ajis02-298	14	16	,	,	PUNCT
ajis02-298	14	17	and	and	CCONJ
ajis02-298	14	18	z.	z.	PROPN
ajis02-298	14	19	the	the	DET
ajis02-298	14	20	basic	basic	ADJ
ajis02-298	14	21	idea	idea	NOUN
ajis02-298	14	22	of	of	ADP
ajis02-298	14	23	property	property	NOUN
ajis02-298	14	24	oriented	orient	VERB
ajis02-298	14	25	specification	specification	NOUN
ajis02-298	14	26	is	be	AUX
ajis02-298	14	27	to	to	PART
ajis02-298	14	28	describe	describe	VERB
ajis02-298	14	29	data	data	NOUN
ajis02-298	14	30	structures	structure	NOUN
ajis02-298	14	31	by	by	ADP
ajis02-298	14	32	only	only	ADV
ajis02-298	14	33	giving	give	VERB
ajis02-298	14	34	names	name	NOUN
ajis02-298	14	35	of	of	ADP
ajis02-298	14	36	data	data	NOUN
ajis02-298	14	37	structures	structure	NOUN
ajis02-298	14	38	and	and	CCONJ
ajis02-298	14	39	basic	basic	ADJ
ajis02-298	14	40	functions	function	NOUN
ajis02-298	14	41	,	,	PUNCT
ajis02-298	14	42	and	and	CCONJ
ajis02-298	14	43	by	by	ADP
ajis02-298	14	44	defining	define	VERB
ajis02-298	14	45	characteristic	characteristic	ADJ
ajis02-298	14	46	properties	property	NOUN
ajis02-298	14	47	among	among	ADP
ajis02-298	14	48	the	the	DET
ajis02-298	14	49	functions	function	NOUN
ajis02-298	14	50	.	.	PUNCT
ajis02-298	15	1	the	the	DET
ajis02-298	15	2	main	main	ADJ
ajis02-298	15	3	asset	asset	NOUN
ajis02-298	15	4	of	of	ADP
ajis02-298	15	5	the	the	DET
ajis02-298	15	6	property	property	NOUN
ajis02-298	15	7	oriented	orient	VERB
ajis02-298	15	8	specification	specification	NOUN
ajis02-298	15	9	style	style	NOUN
ajis02-298	15	10	is	be	AUX
ajis02-298	15	11	to	to	PART
ajis02-298	15	12	encourage	encourage	VERB
ajis02-298	15	13	underspecification	underspecification	NOUN
ajis02-298	15	14	specifying	specify	VERB
ajis02-298	15	15	less	less	ADV
ajis02-298	15	16	rather	rather	ADV
ajis02-298	15	17	than	than	ADP
ajis02-298	15	18	more	more	ADJ
ajis02-298	15	19	,	,	PUNCT
ajis02-298	15	20	and	and	CCONJ
ajis02-298	15	21	doing	do	VERB
ajis02-298	15	22	so	so	ADV
ajis02-298	15	23	as	as	ADV
ajis02-298	15	24	abstractly	abstractly	ADV
ajis02-298	15	25	as	as	ADP
ajis02-298	15	26	possible	possible	ADJ
ajis02-298	15	27	thereby	thereby	ADV
ajis02-298	15	28	avoiding	avoid	VERB
ajis02-298	15	29	the	the	DET
ajis02-298	15	30	tendency	tendency	NOUN
ajis02-298	15	31	to	to	PART
ajis02-298	15	32	focus	focus	VERB
ajis02-298	15	33	on	on	ADP
ajis02-298	15	34	how	how	SCONJ
ajis02-298	15	35	a	a	DET
ajis02-298	15	36	concept	concept	NOUN
ajis02-298	15	37	is	be	AUX
ajis02-298	15	38	realized	realize	VERB
ajis02-298	15	39	rather	rather	ADV
ajis02-298	15	40	than	than	ADP
ajis02-298	15	41	what	what	PRON
ajis02-298	15	42	is	be	AUX
ajis02-298	15	43	required	require	VERB
ajis02-298	15	44	of	of	ADP
ajis02-298	15	45	it	it	PRON
ajis02-298	15	46	.	.	PUNCT
ajis02-298	16	1	property	property	NOUN
ajis02-298	16	2	oriented	orient	VERB
ajis02-298	16	3	approaches	approach	NOUN
ajis02-298	16	4	include	include	VERB
ajis02-298	16	5	clear	clear	ADJ
ajis02-298	16	6	,	,	PUNCT
ajis02-298	16	7	larch	larch	NOUN
ajis02-298	16	8	,	,	PUNCT
ajis02-298	16	9	lotos	loto	NOUN
ajis02-298	16	10	,	,	PUNCT
ajis02-298	16	11	and	and	CCONJ
ajis02-298	16	12	obj	obj	PROPN
ajis02-298	16	13	.	.	PUNCT
ajis02-298	17	1	a	a	DET
ajis02-298	17	2	good	good	ADJ
ajis02-298	17	3	introduction	introduction	NOUN
ajis02-298	17	4	to	to	ADP
ajis02-298	17	5	formal	formal	ADJ
ajis02-298	17	6	methods	method	NOUN
ajis02-298	17	7	is	be	AUX
ajis02-298	17	8	given	give	VERB
ajis02-298	17	9	by	by	ADP
ajis02-298	17	10	(	(	PUNCT
ajis02-298	17	11	clarke	clarke	NOUN
ajis02-298	17	12	and	and	CCONJ
ajis02-298	17	13	wing	wing	NOUN
ajis02-298	17	14	,	,	PUNCT
ajis02-298	17	15	1996	1996	NUM
ajis02-298	17	16	)	)	PUNCT
ajis02-298	17	17	.	.	PUNCT
ajis02-298	18	1	this	this	DET
ajis02-298	18	2	paper	paper	NOUN
ajis02-298	18	3	includes	include	VERB
ajis02-298	18	4	an	an	DET
ajis02-298	18	5	overview	overview	NOUN
ajis02-298	18	6	of	of	ADP
ajis02-298	18	7	notable	notable	ADJ
ajis02-298	18	8	methods	method	NOUN
ajis02-298	18	9	and	and	CCONJ
ajis02-298	18	10	industrial	industrial	ADJ
ajis02-298	18	11	applications	application	NOUN
ajis02-298	18	12	.	.	PUNCT
ajis02-298	19	1	requirements	requirement	NOUN
ajis02-298	19	2	analysis	analysis	NOUN
ajis02-298	19	3	css	css	NOUN
ajis02-298	19	4	is	be	AUX
ajis02-298	19	5	a	a	DET
ajis02-298	19	6	comprehensive	comprehensive	ADJ
ajis02-298	19	7	security	security	NOUN
ajis02-298	19	8	system	system	NOUN
ajis02-298	19	9	which	which	PRON
ajis02-298	19	10	has	have	AUX
ajis02-298	19	11	been	be	AUX
ajis02-298	19	12	developed	develop	VERB
ajis02-298	19	13	at	at	ADP
ajis02-298	19	14	the	the	DET
ajis02-298	19	15	austrian	austrian	ADJ
ajis02-298	19	16	research	research	NOUN
ajis02-298	19	17	center	center	NOUN
ajis02-298	19	18	in	in	ADP
ajis02-298	19	19	seibersdorf	seibersdorf	PROPN
ajis02-298	19	20	(	(	PUNCT
ajis02-298	19	21	arcs	arc	NOUN
ajis02-298	19	22	)	)	PUNCT
ajis02-298	19	23	.	.	PUNCT
ajis02-298	20	1	css	css	PROPN
ajis02-298	20	2	includes	include	VERB
ajis02-298	20	3	features	feature	NOUN
ajis02-298	20	4	like	like	ADP
ajis02-298	20	5	digital	digital	ADJ
ajis02-298	20	6	video	video	NOUN
ajis02-298	20	7	recording	recording	NOUN
ajis02-298	20	8	and	and	CCONJ
ajis02-298	20	9	automatic	automatic	ADJ
ajis02-298	20	10	door	door	NOUN
ajis02-298	20	11	control	control	NOUN
ajis02-298	20	12	.	.	PUNCT
ajis02-298	21	1	in	in	ADP
ajis02-298	21	2	a	a	DET
ajis02-298	21	3	series	series	NOUN
ajis02-298	21	4	of	of	ADP
ajis02-298	21	5	case	case	NOUN
ajis02-298	21	6	studies	study	NOUN
ajis02-298	21	7	,	,	PUNCT
ajis02-298	21	8	the	the	DET
ajis02-298	21	9	ssd	ssd	NOUN
ajis02-298	21	10	module	module	NOUN
ajis02-298	21	11	is	be	AUX
ajis02-298	21	12	used	use	VERB
ajis02-298	21	13	as	as	ADP
ajis02-298	21	14	a	a	DET
ajis02-298	21	15	practical	practical	ADJ
ajis02-298	21	16	example	example	NOUN
ajis02-298	21	17	for	for	ADP
ajis02-298	21	18	the	the	DET
ajis02-298	21	19	investigation	investigation	NOUN
ajis02-298	21	20	of	of	ADP
ajis02-298	21	21	the	the	DET
ajis02-298	21	22	benefits	benefit	NOUN
ajis02-298	21	23	of	of	ADP
ajis02-298	21	24	formal	formal	ADJ
ajis02-298	21	25	methods	method	NOUN
ajis02-298	21	26	(	(	PUNCT
ajis02-298	21	27	droschl	droschl	NOUN
ajis02-298	21	28	,	,	PUNCT
ajis02-298	21	29	1999a	1999a	NUM
ajis02-298	21	30	;	;	PUNCT
ajis02-298	21	31	droschl	droschl	NOUN
ajis02-298	21	32	,	,	PUNCT
ajis02-298	21	33	1999c	1999c	NUM
ajis02-298	21	34	)	)	PUNCT
ajis02-298	21	35	.	.	PUNCT
ajis02-298	22	1	prior	prior	ADV
ajis02-298	22	2	to	to	ADP
ajis02-298	22	3	the	the	DET
ajis02-298	22	4	present	present	ADJ
ajis02-298	22	5	case	case	NOUN
ajis02-298	22	6	study	study	NOUN
ajis02-298	22	7	,	,	PUNCT
ajis02-298	22	8	ssd	ssd	PROPN
ajis02-298	22	9	's	's	PART
ajis02-298	22	10	requirements	requirement	NOUN
ajis02-298	22	11	have	have	AUX
ajis02-298	22	12	been	be	AUX
ajis02-298	22	13	analyzed	analyze	VERB
ajis02-298	22	14	using	use	VERB
ajis02-298	22	15	ifad	ifad	PROPN
ajis02-298	22	16	's	's	PART
ajis02-298	22	17	vdmtools	vdmtool	NOUN
ajis02-298	22	18	(	(	PUNCT
ajis02-298	22	19	elmstrom	elmstrom	NOUN
ajis02-298	22	20	et	et	PROPN
ajis02-298	22	21	al	al	PROPN
ajis02-298	22	22	.	.	PROPN
ajis02-298	22	23	,	,	PUNCT
ajis02-298	22	24	1994	1994	NUM
ajis02-298	22	25	)	)	PUNCT
ajis02-298	22	26	.	.	PUNCT
ajis02-298	23	1	by	by	ADP
ajis02-298	23	2	animating	animate	VERB
ajis02-298	23	3	the	the	DET
ajis02-298	23	4	specification	specification	NOUN
ajis02-298	23	5	using	use	VERB
ajis02-298	23	6	the	the	DET
ajis02-298	23	7	ifad	ifad	ADJ
ajis02-298	23	8	toolbox	toolbox	NOUN
ajis02-298	23	9	,	,	PUNCT
ajis02-298	23	10	a	a	DET
ajis02-298	23	11	simple	simple	ADJ
ajis02-298	23	12	test	test	NOUN
ajis02-298	23	13	case	case	NOUN
ajis02-298	23	14	has	have	AUX
ajis02-298	23	15	been	be	AUX
ajis02-298	23	16	found	find	VERB
ajis02-298	23	17	,	,	PUNCT
ajis02-298	23	18	revealing	reveal	VERB
ajis02-298	23	19	the	the	DET
ajis02-298	23	20	presence	presence	NOUN
ajis02-298	23	21	of	of	ADP
ajis02-298	23	22	inconsistencies	inconsistency	NOUN
ajis02-298	23	23	.	.	PUNCT
ajis02-298	24	1	however	however	ADV
ajis02-298	24	2	,	,	PUNCT
ajis02-298	24	3	we	we	PRON
ajis02-298	24	4	failed	fail	VERB
ajis02-298	24	5	to	to	PART
ajis02-298	24	6	establish	establish	VERB
ajis02-298	24	7	a	a	DET
ajis02-298	24	8	better	well	ADJ
ajis02-298	24	9	understanding	understanding	NOUN
ajis02-298	24	10	of	of	ADP
ajis02-298	24	11	the	the	DET
ajis02-298	24	12	nature	nature	NOUN
ajis02-298	24	13	of	of	ADP
ajis02-298	24	14	the	the	DET
ajis02-298	24	15	contractions	contraction	NOUN
ajis02-298	24	16	.	.	PUNCT
ajis02-298	25	1	second	second	ADJ
ajis02-298	25	2	,	,	PUNCT
ajis02-298	25	3	several	several	ADJ
ajis02-298	25	4	minor	minor	ADJ
ajis02-298	25	5	ambiguities	ambiguity	NOUN
ajis02-298	25	6	had	have	VERB
ajis02-298	25	7	to	to	PART
ajis02-298	25	8	be	be	AUX
ajis02-298	25	9	resolved	resolve	VERB
ajis02-298	25	10	.	.	PUNCT
ajis02-298	26	1	the	the	DET
ajis02-298	26	2	results	result	NOUN
ajis02-298	26	3	of	of	ADP
ajis02-298	26	4	the	the	DET
ajis02-298	26	5	analysis	analysis	NOUN
ajis02-298	26	6	using	use	VERB
ajis02-298	26	7	the	the	DET
ajis02-298	26	8	ifad	ifad	ADJ
ajis02-298	26	9	toolbox	toolbox	NOUN
ajis02-298	26	10	are	be	AUX
ajis02-298	26	11	summarized	summarize	VERB
ajis02-298	26	12	in	in	ADP
ajis02-298	26	13	fig	fig	NOUN
ajis02-298	26	14	.	.	PUNCT
ajis02-298	27	1	1	1	X
ajis02-298	27	2	.	.	X
ajis02-298	27	3	the	the	DET
ajis02-298	27	4	toolbox	toolbox	NOUN
ajis02-298	27	5	includes	include	VERB
ajis02-298	27	6	a	a	DET
ajis02-298	27	7	wide	wide	ADJ
ajis02-298	27	8	range	range	NOUN
ajis02-298	27	9	of	of	ADP
ajis02-298	27	10	useful	useful	ADJ
ajis02-298	27	11	features	feature	NOUN
ajis02-298	27	12	:	:	PUNCT
ajis02-298	27	13	it	it	PRON
ajis02-298	27	14	can	can	AUX
ajis02-298	27	15	animate	animate	VERB
ajis02-298	27	16	a	a	DET
ajis02-298	27	17	subset	subset	NOUN
ajis02-298	27	18	of	of	ADP
ajis02-298	27	19	vdm	vdm	NOUN
ajis02-298	27	20	-	-	PUNCT
ajis02-298	27	21	sl	sl	NOUN
ajis02-298	27	22	constructs	construct	NOUN
ajis02-298	27	23	by	by	ADP
ajis02-298	27	24	applying	apply	VERB
ajis02-298	27	25	a	a	DET
ajis02-298	27	26	test	test	NOUN
ajis02-298	27	27	suite	suite	NOUN
ajis02-298	27	28	.	.	PUNCT
ajis02-298	28	1	in	in	ADP
ajis02-298	28	2	an	an	DET
ajis02-298	28	3	interactive	interactive	ADJ
ajis02-298	28	4	mode	mode	NOUN
ajis02-298	28	5	,	,	PUNCT
ajis02-298	28	6	functions	function	NOUN
ajis02-298	28	7	and	and	CCONJ
ajis02-298	28	8	operations	operation	NOUN
ajis02-298	28	9	may	may	AUX
ajis02-298	28	10	be	be	AUX
ajis02-298	28	11	invoked	invoke	VERB
ajis02-298	28	12	.	.	PUNCT
ajis02-298	29	1	test	test	NOUN
ajis02-298	29	2	coverage	coverage	NOUN
ajis02-298	29	3	is	be	AUX
ajis02-298	29	4	a	a	DET
ajis02-298	29	5	powerful	powerful	ADJ
ajis02-298	29	6	feature	feature	NOUN
ajis02-298	29	7	which	which	PRON
ajis02-298	29	8	enables	enable	VERB
ajis02-298	29	9	the	the	DET
ajis02-298	29	10	user	user	NOUN
ajis02-298	29	11	to	to	PART
ajis02-298	29	12	determine	determine	VERB
ajis02-298	29	13	to	to	ADP
ajis02-298	29	14	which	which	DET
ajis02-298	29	15	extent	extent	NOUN
ajis02-298	29	16	the	the	DET
ajis02-298	29	17	specification	specification	NOUN
ajis02-298	29	18	is	be	AUX
ajis02-298	29	19	covered	cover	VERB
ajis02-298	29	20	by	by	ADP
ajis02-298	29	21	the	the	DET
ajis02-298	29	22	test	test	NOUN
ajis02-298	29	23	suite	suite	NOUN
ajis02-298	29	24	.	.	PUNCT
ajis02-298	30	1	due	due	ADP
ajis02-298	30	2	to	to	ADP
ajis02-298	30	3	an	an	DET
ajis02-298	30	4	automatic	automatic	ADJ
ajis02-298	30	5	c++	c++	NOUN
ajis02-298	30	6	code	code	PROPN
ajis02-298	30	7	generator	generator	PROPN
ajis02-298	30	8	,	,	PUNCT
ajis02-298	30	9	the	the	DET
ajis02-298	30	10	toolbox	toolbox	NOUN
ajis02-298	30	11	can	can	AUX
ajis02-298	30	12	also	also	ADV
ajis02-298	30	13	be	be	AUX
ajis02-298	30	14	used	use	VERB
ajis02-298	30	15	in	in	ADP
ajis02-298	30	16	projects	project	NOUN
ajis02-298	30	17	where	where	SCONJ
ajis02-298	30	18	code	code	NOUN
ajis02-298	30	19	has	have	VERB
ajis02-298	30	20	to	to	PART
ajis02-298	30	21	be	be	AUX
ajis02-298	30	22	delivered	deliver	VERB
ajis02-298	30	23	.	.	PUNCT
ajis02-298	31	1	146	146	NUM
ajis02-298	31	2	assets	asset	NOUN
ajis02-298	31	3	supports	support	VERB
ajis02-298	31	4	animation	animation	NOUN
ajis02-298	31	5	/	/	SYM
ajis02-298	31	6	testing	testing	NOUN
ajis02-298	31	7	statement	statement	NOUN
ajis02-298	31	8	/	/	SYM
ajis02-298	31	9	expression	expression	NOUN
ajis02-298	31	10	based	base	VERB
ajis02-298	31	11	test	test	NOUN
ajis02-298	31	12	coverage	coverage	NOUN
ajis02-298	31	13	automatic	automatic	ADJ
ajis02-298	31	14	c++	c++	NOUN
ajis02-298	31	15	code	code	NOUN
ajis02-298	31	16	generation	generation	NOUN
ajis02-298	31	17	liabilities	liability	NOUN
ajis02-298	31	18	no	no	DET
ajis02-298	31	19	test	test	NOUN
ajis02-298	31	20	case	case	NOUN
ajis02-298	31	21	generator	generator	NOUN
ajis02-298	31	22	readily	readily	ADV
ajis02-298	31	23	available	available	ADJ
ajis02-298	31	24	exhaustive	exhaustive	ADJ
ajis02-298	31	25	test	test	NOUN
ajis02-298	31	26	difficult	difficult	ADJ
ajis02-298	31	27	test	test	NOUN
ajis02-298	31	28	,	,	PUNCT
ajis02-298	31	29	,	,	PUNCT
ajis02-298	31	30	low	low	ADJ
ajis02-298	31	31	level	level	NOUN
ajis02-298	31	32	"	"	PUNCT
ajis02-298	31	33	figure	figure	NOUN
ajis02-298	31	34	1	1	NUM
ajis02-298	31	35	:	:	PUNCT
ajis02-298	31	36	experiences	experience	NOUN
ajis02-298	31	37	with	with	ADP
ajis02-298	31	38	ifad	ifad	PROPN
ajis02-298	31	39	's	's	PART
ajis02-298	31	40	toolbox	toolbox	NOUN
ajis02-298	31	41	for	for	ADP
ajis02-298	31	42	vdm	vdm	NOUN
ajis02-298	31	43	-	-	PUNCT
ajis02-298	31	44	sl	sl	PROPN
ajis02-298	31	45	for	for	ADP
ajis02-298	31	46	requirements	requirement	NOUN
ajis02-298	31	47	analysis	analysis	NOUN
ajis02-298	31	48	.	.	PUNCT
ajis02-298	32	1	in	in	ADP
ajis02-298	32	2	order	order	NOUN
ajis02-298	32	3	to	to	PART
ajis02-298	32	4	guarantee	guarantee	VERB
ajis02-298	32	5	a	a	DET
ajis02-298	32	6	systematic	systematic	ADJ
ajis02-298	32	7	approach	approach	NOUN
ajis02-298	32	8	to	to	ADP
ajis02-298	32	9	testing	test	VERB
ajis02-298	32	10	the	the	DET
ajis02-298	32	11	specification	specification	NOUN
ajis02-298	32	12	,	,	PUNCT
ajis02-298	32	13	a	a	DET
ajis02-298	32	14	test	test	NOUN
ajis02-298	32	15	suite	suite	NOUN
ajis02-298	32	16	has	have	VERB
ajis02-298	32	17	to	to	PART
ajis02-298	32	18	be	be	AUX
ajis02-298	32	19	selected	select	VERB
ajis02-298	32	20	in	in	ADP
ajis02-298	32	21	a	a	DET
ajis02-298	32	22	thorough	thorough	ADJ
ajis02-298	32	23	manner	manner	NOUN
ajis02-298	32	24	(	(	PUNCT
ajis02-298	32	25	poston	poston	NOUN
ajis02-298	32	26	,	,	PUNCT
ajis02-298	32	27	1996	1996	NUM
ajis02-298	32	28	)	)	PUNCT
ajis02-298	32	29	.	.	PUNCT
ajis02-298	33	1	however	however	ADV
ajis02-298	33	2	,	,	PUNCT
ajis02-298	33	3	the	the	DET
ajis02-298	33	4	toolbox	toolbox	NOUN
ajis02-298	33	5	does	do	AUX
ajis02-298	33	6	not	not	PART
ajis02-298	33	7	have	have	VERB
ajis02-298	33	8	a	a	DET
ajis02-298	33	9	test	test	NOUN
ajis02-298	33	10	case	case	NOUN
ajis02-298	33	11	generator	generator	NOUN
ajis02-298	33	12	.	.	PUNCT
ajis02-298	34	1	this	this	PRON
ajis02-298	34	2	and	and	CCONJ
ajis02-298	34	3	the	the	DET
ajis02-298	34	4	huge	huge	ADJ
ajis02-298	34	5	size	size	NOUN
ajis02-298	34	6	of	of	ADP
ajis02-298	34	7	the	the	DET
ajis02-298	34	8	state	state	NOUN
ajis02-298	34	9	space	space	NOUN
ajis02-298	34	10	of	of	ADP
ajis02-298	34	11	ssd	ssd	NOUN
ajis02-298	34	12	makes	make	VERB
ajis02-298	34	13	an	an	DET
ajis02-298	34	14	exhaustive	exhaustive	ADJ
ajis02-298	34	15	test	test	NOUN
ajis02-298	34	16	difficult	difficult	ADJ
ajis02-298	34	17	.	.	PUNCT
ajis02-298	35	1	according	accord	VERB
ajis02-298	35	2	to	to	ADP
ajis02-298	35	3	our	our	PRON
ajis02-298	35	4	experience	experience	NOUN
ajis02-298	35	5	,	,	PUNCT
ajis02-298	35	6	testing	testing	NOUN
ajis02-298	35	7	supported	support	VERB
ajis02-298	35	8	by	by	ADP
ajis02-298	35	9	the	the	DET
ajis02-298	35	10	ifad	ifad	ADJ
ajis02-298	35	11	toolbox	toolbox	NOUN
ajis02-298	35	12	is	be	AUX
ajis02-298	35	13	a	a	DET
ajis02-298	35	14	"	"	PUNCT
ajis02-298	35	15	low	low	ADJ
ajis02-298	35	16	level	level	NOUN
ajis02-298	35	17	"	"	PUNCT
ajis02-298	35	18	activity	activity	NOUN
ajis02-298	35	19	.	.	PUNCT
ajis02-298	36	1	it	it	PRON
ajis02-298	36	2	would	would	AUX
ajis02-298	36	3	be	be	AUX
ajis02-298	36	4	desirable	desirable	ADJ
ajis02-298	36	5	to	to	PART
ajis02-298	36	6	generate	generate	VERB
ajis02-298	36	7	test	test	NOUN
ajis02-298	36	8	cases	case	NOUN
ajis02-298	36	9	based	base	VERB
ajis02-298	36	10	on	on	ADP
ajis02-298	36	11	general	general	ADJ
ajis02-298	36	12	properties	property	NOUN
ajis02-298	36	13	.	.	PUNCT
ajis02-298	37	1	in	in	ADP
ajis02-298	37	2	order	order	NOUN
ajis02-298	37	3	to	to	PART
ajis02-298	37	4	overcome	overcome	VERB
ajis02-298	37	5	this	this	DET
ajis02-298	37	6	problem	problem	NOUN
ajis02-298	37	7	,	,	PUNCT
ajis02-298	37	8	parts	part	NOUN
ajis02-298	37	9	of	of	ADP
ajis02-298	37	10	the	the	DET
ajis02-298	37	11	logic	logic	NOUN
ajis02-298	37	12	of	of	ADP
ajis02-298	37	13	ssd	ssd	NOUN
ajis02-298	37	14	were	be	AUX
ajis02-298	37	15	used	use	VERB
ajis02-298	37	16	for	for	ADP
ajis02-298	37	17	the	the	DET
ajis02-298	37	18	generation	generation	NOUN
ajis02-298	37	19	of	of	ADP
ajis02-298	37	20	test	test	NOUN
ajis02-298	37	21	cases	case	NOUN
ajis02-298	37	22	(	(	PUNCT
ajis02-298	37	23	droschl	droschl	NOUN
ajis02-298	37	24	,	,	PUNCT
ajis02-298	37	25	1999b	1999b	NUM
ajis02-298	37	26	)	)	PUNCT
ajis02-298	37	27	.	.	PUNCT
ajis02-298	38	1	tool	tool	NOUN
ajis02-298	38	2	support	support	NOUN
ajis02-298	38	3	is	be	AUX
ajis02-298	38	4	known	know	VERB
ajis02-298	38	5	to	to	PART
ajis02-298	38	6	be	be	AUX
ajis02-298	38	7	one	one	NUM
ajis02-298	38	8	of	of	ADP
ajis02-298	38	9	the	the	DET
ajis02-298	38	10	success	success	NOUN
ajis02-298	38	11	factors	factor	NOUN
ajis02-298	38	12	in	in	ADP
ajis02-298	38	13	formal	formal	ADJ
ajis02-298	38	14	specification	specification	NOUN
ajis02-298	38	15	based	base	VERB
ajis02-298	38	16	analysis	analysis	NOUN
ajis02-298	38	17	.	.	PUNCT
ajis02-298	39	1	essentially	essentially	ADV
ajis02-298	39	2	,	,	PUNCT
ajis02-298	39	3	there	there	PRON
ajis02-298	39	4	are	be	VERB
ajis02-298	39	5	rewriting	rewrite	VERB
ajis02-298	39	6	based	base	VERB
ajis02-298	39	7	methods	method	NOUN
ajis02-298	39	8	(	(	PUNCT
ajis02-298	39	9	including	include	VERB
ajis02-298	39	10	theorem	theorem	ADJ
ajis02-298	39	11	proving	proving	NOUN
ajis02-298	39	12	)	)	PUNCT
ajis02-298	39	13	and	and	CCONJ
ajis02-298	39	14	state	state	NOUN
ajis02-298	39	15	enumeration	enumeration	NOUN
ajis02-298	39	16	based	base	VERB
ajis02-298	39	17	methods	method	NOUN
ajis02-298	39	18	(	(	PUNCT
ajis02-298	39	19	including	include	VERB
ajis02-298	39	20	the	the	DET
ajis02-298	39	21	application	application	NOUN
ajis02-298	39	22	of	of	ADP
ajis02-298	39	23	test	test	NOUN
ajis02-298	39	24	cases	case	NOUN
ajis02-298	39	25	like	like	ADP
ajis02-298	39	26	in	in	ADP
ajis02-298	39	27	the	the	DET
ajis02-298	39	28	ifad	ifad	ADJ
ajis02-298	39	29	toolbox	toolbox	NOUN
ajis02-298	39	30	,	,	PUNCT
ajis02-298	39	31	and	and	CCONJ
ajis02-298	39	32	model	model	NOUN
ajis02-298	39	33	checking	checking	NOUN
ajis02-298	39	34	(	(	PUNCT
ajis02-298	39	35	holzmann	holzmann	NOUN
ajis02-298	39	36	,	,	PUNCT
ajis02-298	39	37	1997	1997	NUM
ajis02-298	39	38	)	)	PUNCT
ajis02-298	39	39	)	)	PUNCT
ajis02-298	39	40	.	.	PUNCT
ajis02-298	40	1	for	for	ADP
ajis02-298	40	2	an	an	DET
ajis02-298	40	3	overview	overview	NOUN
ajis02-298	40	4	to	to	ADP
ajis02-298	40	5	formal	formal	ADJ
ajis02-298	40	6	specification	specification	NOUN
ajis02-298	40	7	based	base	VERB
ajis02-298	40	8	analysis	analysis	NOUN
ajis02-298	40	9	see	see	VERB
ajis02-298	40	10	for	for	ADP
ajis02-298	40	11	example	example	NOUN
ajis02-298	40	12	(	(	PUNCT
ajis02-298	40	13	clarke	clarke	NOUN
ajis02-298	40	14	and	and	CCONJ
ajis02-298	40	15	wing	wing	NOUN
ajis02-298	40	16	,	,	PUNCT
ajis02-298	40	17	1996	1996	NUM
ajis02-298	40	18	;	;	PUNCT
ajis02-298	41	1	nasa	nasa	PROPN
ajis02-298	41	2	,	,	PUNCT
ajis02-298	41	3	1997	1997	NUM
ajis02-298	41	4	)	)	PUNCT
ajis02-298	41	5	.	.	PUNCT
ajis02-298	42	1	in	in	ADP
ajis02-298	42	2	enumeration	enumeration	NOUN
ajis02-298	42	3	based	base	VERB
ajis02-298	42	4	techniques	technique	NOUN
ajis02-298	42	5	,	,	PUNCT
ajis02-298	42	6	the	the	DET
ajis02-298	42	7	size	size	NOUN
ajis02-298	42	8	of	of	ADP
ajis02-298	42	9	the	the	DET
ajis02-298	42	10	state	state	NOUN
ajis02-298	42	11	space	space	NOUN
ajis02-298	42	12	is	be	AUX
ajis02-298	42	13	known	know	VERB
ajis02-298	42	14	to	to	PART
ajis02-298	42	15	be	be	AUX
ajis02-298	42	16	the	the	DET
ajis02-298	42	17	major	major	ADJ
ajis02-298	42	18	limiting	limit	VERB
ajis02-298	42	19	factor	factor	NOUN
ajis02-298	42	20	.	.	PUNCT
ajis02-298	43	1	in	in	ADP
ajis02-298	43	2	the	the	DET
ajis02-298	43	3	present	present	ADJ
ajis02-298	43	4	case	case	NOUN
ajis02-298	43	5	study	study	NOUN
ajis02-298	43	6	,	,	PUNCT
ajis02-298	43	7	for	for	ADP
ajis02-298	43	8	the	the	DET
ajis02-298	43	9	following	follow	VERB
ajis02-298	43	10	reasons	reason	NOUN
ajis02-298	43	11	a	a	DET
ajis02-298	43	12	theorem	theorem	ADJ
ajis02-298	43	13	prover	prover	NOUN
ajis02-298	43	14	has	have	AUX
ajis02-298	43	15	been	be	AUX
ajis02-298	43	16	selected	select	VERB
ajis02-298	43	17	:	:	PUNCT
ajis02-298	43	18	first	first	ADV
ajis02-298	43	19	,	,	PUNCT
ajis02-298	43	20	ssd	ssd	NOUN
ajis02-298	43	21	has	have	VERB
ajis02-298	43	22	a	a	DET
ajis02-298	43	23	huge	huge	ADJ
ajis02-298	43	24	state	state	NOUN
ajis02-298	43	25	space	space	NOUN
ajis02-298	43	26	.	.	PUNCT
ajis02-298	44	1	as	as	SCONJ
ajis02-298	44	2	mentioned	mention	VERB
ajis02-298	44	3	above	above	ADV
ajis02-298	44	4	,	,	PUNCT
ajis02-298	44	5	this	this	PRON
ajis02-298	44	6	makes	make	VERB
ajis02-298	44	7	achieving	achieve	VERB
ajis02-298	44	8	complete	complete	ADJ
ajis02-298	44	9	test	test	NOUN
ajis02-298	44	10	coverage	coverage	NOUN
ajis02-298	44	11	a	a	DET
ajis02-298	44	12	difficult	difficult	ADJ
ajis02-298	44	13	task	task	NOUN
ajis02-298	44	14	.	.	PUNCT
ajis02-298	45	1	second	second	ADJ
ajis02-298	45	2	,	,	PUNCT
ajis02-298	45	3	we	we	PRON
ajis02-298	45	4	were	be	AUX
ajis02-298	45	5	interested	interested	ADJ
ajis02-298	45	6	in	in	ADP
ajis02-298	45	7	evaluating	evaluate	VERB
ajis02-298	45	8	an	an	DET
ajis02-298	45	9	approach	approach	NOUN
ajis02-298	45	10	which	which	PRON
ajis02-298	45	11	is	be	AUX
ajis02-298	45	12	opposed	oppose	VERB
ajis02-298	45	13	to	to	ADP
ajis02-298	45	14	the	the	DET
ajis02-298	45	15	one	one	NUM
ajis02-298	45	16	employed	employ	VERB
ajis02-298	45	17	in	in	ADP
ajis02-298	45	18	the	the	DET
ajis02-298	45	19	first	first	ADJ
ajis02-298	45	20	case	case	NOUN
ajis02-298	45	21	study	study	NOUN
ajis02-298	45	22	.	.	PUNCT
ajis02-298	46	1	the	the	DET
ajis02-298	46	2	list	list	NOUN
ajis02-298	46	3	of	of	ADP
ajis02-298	46	4	theorem	theorem	ADJ
ajis02-298	46	5	provers	prover	NOUN
ajis02-298	46	6	provided	provide	VERB
ajis02-298	46	7	by	by	ADP
ajis02-298	46	8	paulson17	paulson17	NOUN
ajis02-298	46	9	includes	include	VERB
ajis02-298	46	10	isabelle	isabelle	PROPN
ajis02-298	46	11	,	,	PUNCT
ajis02-298	46	12	pvs	pvs	PROPN
ajis02-298	46	13	,	,	PUNCT
ajis02-298	46	14	hol	hol	NOUN
ajis02-298	46	15	,	,	PUNCT
ajis02-298	46	16	otter	otter	NOUN
ajis02-298	46	17	,	,	PUNCT
ajis02-298	46	18	coq	coq	NOUN
ajis02-298	46	19	and	and	CCONJ
ajis02-298	46	20	z	z	PROPN
ajis02-298	46	21	/	/	SYM
ajis02-298	46	22	eves	eve	NOUN
ajis02-298	46	23	.	.	PUNCT
ajis02-298	47	1	despite	despite	SCONJ
ajis02-298	47	2	its	its	PRON
ajis02-298	47	3	potential	potential	ADJ
ajis02-298	47	4	bugs18	bugs18	NOUN
ajis02-298	47	5	,	,	PUNCT
ajis02-298	47	6	the	the	DET
ajis02-298	47	7	prototype	prototype	NOUN
ajis02-298	47	8	verification	verification	NOUN
ajis02-298	47	9	system	system	NOUN
ajis02-298	47	10	(	(	PUNCT
ajis02-298	47	11	pvs	pvs	PROPN
ajis02-298	47	12	)	)	PUNCT
ajis02-298	47	13	(	(	PUNCT
ajis02-298	47	14	owre	owre	NOUN
ajis02-298	47	15	et	et	PROPN
ajis02-298	47	16	al	al	PROPN
ajis02-298	47	17	.	.	PROPN
ajis02-298	47	18	,	,	PUNCT
ajis02-298	47	19	1992	1992	NUM
ajis02-298	47	20	;	;	PUNCT
ajis02-298	47	21	rushby	rushby	NOUN
ajis02-298	47	22	and	and	CCONJ
ajis02-298	47	23	stringercalvert	stringercalvert	ADJ
ajis02-298	47	24	,	,	PUNCT
ajis02-298	47	25	1995	1995	NUM
ajis02-298	47	26	)	)	PUNCT
ajis02-298	47	27	is	be	AUX
ajis02-298	47	28	one	one	NUM
ajis02-298	47	29	of	of	ADP
ajis02-298	47	30	the	the	DET
ajis02-298	47	31	most	most	ADV
ajis02-298	47	32	popular	popular	ADJ
ajis02-298	47	33	tools	tool	NOUN
ajis02-298	47	34	.	.	PUNCT
ajis02-298	48	1	thus	thus	ADV
ajis02-298	48	2	,	,	PUNCT
ajis02-298	48	3	it	it	PRON
ajis02-298	48	4	is	be	AUX
ajis02-298	48	5	very	very	ADV
ajis02-298	48	6	well	well	ADV
ajis02-298	48	7	supported	support	VERB
ajis02-298	48	8	.	.	PUNCT
ajis02-298	49	1	pvs	pvs	PROPN
ajis02-298	49	2	is	be	AUX
ajis02-298	49	3	a	a	DET
ajis02-298	49	4	tool	tool	NOUN
ajis02-298	49	5	for	for	ADP
ajis02-298	49	6	writing	write	VERB
ajis02-298	49	7	specifications	specification	NOUN
ajis02-298	49	8	and	and	CCONJ
ajis02-298	49	9	constructing	construct	VERB
ajis02-298	49	10	proofs	proof	NOUN
ajis02-298	49	11	.	.	PUNCT
ajis02-298	50	1	it	it	PRON
ajis02-298	50	2	comprises	comprise	VERB
ajis02-298	50	3	a	a	DET
ajis02-298	50	4	specification	specification	NOUN
ajis02-298	50	5	language	language	NOUN
ajis02-298	50	6	,	,	PUNCT
ajis02-298	50	7	a	a	DET
ajis02-298	50	8	number	number	NOUN
ajis02-298	50	9	of	of	ADP
ajis02-298	50	10	predefined	predefine	VERB
ajis02-298	50	11	theories	theory	NOUN
ajis02-298	50	12	,	,	PUNCT
ajis02-298	50	13	a	a	DET
ajis02-298	50	14	theorem	theorem	ADJ
ajis02-298	50	15	prover	prover	NOUN
ajis02-298	50	16	,	,	PUNCT
ajis02-298	50	17	and	and	CCONJ
ajis02-298	50	18	various	various	ADJ
ajis02-298	50	19	utilities	utility	NOUN
ajis02-298	50	20	.	.	PUNCT
ajis02-298	51	1	the	the	DET
ajis02-298	51	2	specification	specification	NOUN
ajis02-298	51	3	language	language	NOUN
ajis02-298	51	4	of	of	ADP
ajis02-298	51	5	pvs	pvs	PROPN
ajis02-298	51	6	supports	support	VERB
ajis02-298	51	7	property	property	NOUN
ajis02-298	51	8	oriented	orient	VERB
ajis02-298	51	9	specifications	specification	NOUN
ajis02-298	51	10	.	.	PUNCT
ajis02-298	52	1	the	the	DET
ajis02-298	52	2	prototype	prototype	NOUN
ajis02-298	52	3	verification	verification	NOUN
ajis02-298	52	4	system	system	NOUN
ajis02-298	52	5	combines	combine	VERB
ajis02-298	52	6	an	an	DET
ajis02-298	52	7	expressive	expressive	ADJ
ajis02-298	52	8	logic	logic	NOUN
ajis02-298	52	9	with	with	ADP
ajis02-298	52	10	an	an	DET
ajis02-298	52	11	interactive	interactive	ADJ
ajis02-298	52	12	proof	proof	NOUN
ajis02-298	52	13	checker	checker	NOUN
ajis02-298	52	14	that	that	PRON
ajis02-298	52	15	supports	support	VERB
ajis02-298	52	16	top	top	ADJ
ajis02-298	52	17	-	-	PUNCT
ajis02-298	52	18	down	down	ADP
ajis02-298	52	19	proof	proof	NOUN
ajis02-298	52	20	exploration	exploration	NOUN
ajis02-298	52	21	and	and	CCONJ
ajis02-298	52	22	construction	construction	NOUN
ajis02-298	52	23	.	.	PUNCT
ajis02-298	53	1	in	in	ADP
ajis02-298	53	2	addition	addition	NOUN
ajis02-298	53	3	to	to	ADP
ajis02-298	53	4	its	its	PRON
ajis02-298	53	5	proof	proof	NOUN
ajis02-298	53	6	checker	checker	NOUN
ajis02-298	53	7	,	,	PUNCT
ajis02-298	53	8	the	the	DET
ajis02-298	53	9	pvs	pvs	PROPN
ajis02-298	53	10	system	system	NOUN
ajis02-298	53	11	includes	include	VERB
ajis02-298	53	12	a	a	DET
ajis02-298	53	13	parser	parser	NOUN
ajis02-298	53	14	,	,	PUNCT
ajis02-298	53	15	prettyprinter	prettyprinter	NOUN
ajis02-298	53	16	,	,	PUNCT
ajis02-298	53	17	and	and	CCONJ
ajis02-298	53	18	typechecker	typechecker	NOUN
ajis02-298	53	19	.	.	PUNCT
ajis02-298	54	1	pvs	pvs	PROPN
ajis02-298	54	2	has	have	AUX
ajis02-298	54	3	been	be	AUX
ajis02-298	54	4	applied	apply	VERB
ajis02-298	54	5	to	to	ADP
ajis02-298	54	6	many	many	ADJ
ajis02-298	54	7	applications	application	NOUN
ajis02-298	54	8	including	include	VERB
ajis02-298	54	9	real	real	ADJ
ajis02-298	54	10	-	-	PUNCT
ajis02-298	54	11	time	time	NOUN
ajis02-298	54	12	(	(	PUNCT
ajis02-298	54	13	kellomaki	kellomaki	NOUN
ajis02-298	54	14	,	,	PUNCT
ajis02-298	54	15	1997	1997	NUM
ajis02-298	54	16	;	;	PUNCT
ajis02-298	54	17	van	van	PROPN
ajis02-298	54	18	de	de	PROPN
ajis02-298	54	19	pol	pol	PROPN
ajis02-298	54	20	et	et	PROPN
ajis02-298	54	21	al	al	PROPN
ajis02-298	54	22	.	.	PROPN
ajis02-298	54	23	,	,	PUNCT
ajis02-298	54	24	1998	1998	NUM
ajis02-298	54	25	)	)	PUNCT
ajis02-298	54	26	,	,	PUNCT
ajis02-298	54	27	protocols	protocol	NOUN
ajis02-298	54	28	(	(	PUNCT
ajis02-298	54	29	rajan	rajan	PROPN
ajis02-298	54	30	and	and	CCONJ
ajis02-298	54	31	fujita	fujita	PROPN
ajis02-298	54	32	,	,	PUNCT
ajis02-298	54	33	1997	1997	NUM
ajis02-298	54	34	)	)	PUNCT
ajis02-298	54	35	,	,	PUNCT
ajis02-298	54	36	avionics	avionic	NOUN
ajis02-298	54	37	(	(	PUNCT
ajis02-298	54	38	dutertre	dutertre	NOUN
ajis02-298	54	39	and	and	CCONJ
ajis02-298	54	40	stavridou	stavridou	NOUN
ajis02-298	54	41	,	,	PUNCT
ajis02-298	54	42	1997	1997	NUM
ajis02-298	54	43	)	)	PUNCT
ajis02-298	54	44	,	,	PUNCT
ajis02-298	54	45	space	space	NOUN
ajis02-298	54	46	applications	application	NOUN
ajis02-298	54	47	(	(	PUNCT
ajis02-298	54	48	lutz	lutz	NOUN
ajis02-298	54	49	and	and	CCONJ
ajis02-298	54	50	ampo	ampo	ADJ
ajis02-298	54	51	,	,	PUNCT
ajis02-298	54	52	1994	1994	NUM
ajis02-298	54	53	)	)	PUNCT
ajis02-298	54	54	,	,	PUNCT
ajis02-298	54	55	and	and	CCONJ
ajis02-298	54	56	digital	digital	ADJ
ajis02-298	54	57	circuits	circuit	NOUN
ajis02-298	54	58	(	(	PUNCT
ajis02-298	54	59	miner	miner	NOUN
ajis02-298	54	60	and	and	CCONJ
ajis02-298	54	61	johnson	johnson	PROPN
ajis02-298	54	62	,	,	PUNCT
ajis02-298	54	63	1996	1996	NUM
ajis02-298	54	64	;	;	PUNCT
ajis02-298	54	65	shostak	shostak	NOUN
ajis02-298	54	66	,	,	PUNCT
ajis02-298	54	67	1983	1983	NUM
ajis02-298	54	68	)	)	PUNCT
ajis02-298	54	69	.	.	PUNCT
ajis02-298	55	1	pvs	pvs	PROPN
ajis02-298	55	2	has	have	AUX
ajis02-298	55	3	been	be	AUX
ajis02-298	55	4	used	use	VERB
ajis02-298	55	5	for	for	ADP
ajis02-298	55	6	requirements	requirement	NOUN
ajis02-298	55	7	analysis	analysis	NOUN
ajis02-298	55	8	before	before	ADV
ajis02-298	55	9	(	(	PUNCT
ajis02-298	55	10	butler	butler	NOUN
ajis02-298	55	11	,	,	PUNCT
ajis02-298	55	12	1996	1996	NUM
ajis02-298	55	13	;	;	PUNCT
ajis02-298	55	14	di	di	PROPN
ajis02-298	55	15	vito	vito	PROPN
ajis02-298	55	16	and	and	CCONJ
ajis02-298	55	17	roberts	roberts	PROPN
ajis02-298	55	18	,	,	PUNCT
ajis02-298	55	19	1996	1996	NUM
ajis02-298	55	20	;	;	PUNCT
ajis02-298	55	21	dutertre	dutertre	NOUN
ajis02-298	55	22	and	and	CCONJ
ajis02-298	55	23	stavridou	stavridou	NOUN
ajis02-298	55	24	,	,	PUNCT
ajis02-298	55	25	1997	1997	NUM
ajis02-298	55	26	;	;	PUNCT
ajis02-298	56	1	easterbrook	easterbrook	PROPN
ajis02-298	56	2	et	et	PROPN
ajis02-298	56	3	al	al	PROPN
ajis02-298	56	4	.	.	PROPN
ajis02-298	56	5	,	,	PUNCT
ajis02-298	56	6	1998	1998	NUM
ajis02-298	56	7	;	;	PUNCT
ajis02-298	56	8	heimdahl	heimdahl	NOUN
ajis02-298	56	9	and	and	CCONJ
ajis02-298	56	10	czerny	czerny	NOUN
ajis02-298	56	11	,	,	PUNCT
ajis02-298	56	12	1996	1996	NUM
ajis02-298	56	13	)	)	PUNCT
ajis02-298	56	14	.	.	PUNCT
ajis02-298	57	1	the	the	DET
ajis02-298	57	2	issue	issue	NOUN
ajis02-298	57	3	of	of	ADP
ajis02-298	57	4	integrating	integrate	VERB
ajis02-298	57	5	vdm	vdm	PROPN
ajis02-298	57	6	and	and	CCONJ
ajis02-298	57	7	pvs	pvs	PROPN
ajis02-298	57	8	for	for	ADP
ajis02-298	57	9	ssd	ssd	NOUN
ajis02-298	57	10	is	be	AUX
ajis02-298	57	11	discussed	discuss	VERB
ajis02-298	57	12	by	by	ADP
ajis02-298	57	13	(	(	PUNCT
ajis02-298	57	14	agerholm	agerholm	NOUN
ajis02-298	57	15	,	,	PUNCT
ajis02-298	57	16	1996	1996	NUM
ajis02-298	57	17	)	)	PUNCT
ajis02-298	57	18	and	and	CCONJ
ajis02-298	57	19	(	(	PUNCT
ajis02-298	57	20	droschl	droschl	NOUN
ajis02-298	57	21	,	,	PUNCT
ajis02-298	57	22	1999c	1999c	NUM
ajis02-298	57	23	)	)	PUNCT
ajis02-298	57	24	.	.	PUNCT
ajis02-298	58	1	structure	structure	NOUN
ajis02-298	58	2	of	of	ADP
ajis02-298	58	3	this	this	DET
ajis02-298	58	4	paper	paper	NOUN
ajis02-298	58	5	this	this	DET
ajis02-298	58	6	paper	paper	NOUN
ajis02-298	58	7	is	be	AUX
ajis02-298	58	8	structured	structure	VERB
ajis02-298	58	9	as	as	SCONJ
ajis02-298	58	10	follows	follow	VERB
ajis02-298	58	11	:	:	PUNCT
ajis02-298	58	12	section	section	NOUN
ajis02-298	58	13	2	2	NUM
ajis02-298	58	14	gives	give	VERB
ajis02-298	58	15	a	a	DET
ajis02-298	58	16	general	general	ADJ
ajis02-298	58	17	presentation	presentation	NOUN
ajis02-298	58	18	of	of	ADP
ajis02-298	58	19	ssd	ssd	NOUN
ajis02-298	58	20	,	,	PUNCT
ajis02-298	58	21	followed	follow	VERB
ajis02-298	58	22	by	by	ADP
ajis02-298	58	23	some	some	DET
ajis02-298	58	24	advanced	advanced	ADJ
ajis02-298	58	25	features	feature	NOUN
ajis02-298	58	26	.	.	PUNCT
ajis02-298	59	1	that	that	DET
ajis02-298	59	2	section	section	NOUN
ajis02-298	59	3	is	be	AUX
ajis02-298	59	4	concluded	conclude	VERB
ajis02-298	59	5	by	by	ADP
ajis02-298	59	6	a	a	DET
ajis02-298	59	7	discussion	discussion	NOUN
ajis02-298	59	8	of	of	ADP
ajis02-298	59	9	..	..	PUNCT
ajis02-298	59	10	switches	switch	NOUN
ajis02-298	59	11	"	"	PUNCT
ajis02-298	59	12	,	,	PUNCT
ajis02-298	59	13	which	which	PRON
ajis02-298	59	14	are	be	AUX
ajis02-298	59	15	the	the	DET
ajis02-298	59	16	subject	subject	NOUN
ajis02-298	59	17	of	of	ADP
ajis02-298	59	18	this	this	DET
ajis02-298	59	19	analysis	analysis	NOUN
ajis02-298	59	20	.	.	PUNCT
ajis02-298	60	1	in	in	ADP
ajis02-298	60	2	sec.3	sec.3	PROPN
ajis02-298	60	3	a	a	DET
ajis02-298	60	4	formal	formal	ADJ
ajis02-298	60	5	pvs	pvs	NOUN
ajis02-298	60	6	specification	specification	NOUN
ajis02-298	60	7	for	for	ADP
ajis02-298	60	8	switches	switch	NOUN
ajis02-298	60	9	will	will	AUX
ajis02-298	60	10	be	be	AUX
ajis02-298	60	11	developed	develop	VERB
ajis02-298	60	12	.	.	PUNCT
ajis02-298	61	1	in	in	ADP
ajis02-298	61	2	the	the	DET
ajis02-298	61	3	second	second	ADJ
ajis02-298	61	4	half	half	NOUN
ajis02-298	61	5	of	of	ADP
ajis02-298	61	6	that	that	DET
ajis02-298	61	7	section	section	NOUN
ajis02-298	61	8	,	,	PUNCT
ajis02-298	61	9	the	the	DET
ajis02-298	61	10	specification	specification	NOUN
ajis02-298	61	11	will	will	AUX
ajis02-298	61	12	be	be	AUX
ajis02-298	61	13	used	use	VERB
ajis02-298	61	14	for	for	ADP
ajis02-298	61	15	proving	prove	VERB
ajis02-298	61	16	requirements	requirement	NOUN
ajis02-298	61	17	properties	property	NOUN
ajis02-298	61	18	.	.	PUNCT
ajis02-298	62	1	section	section	NOUN
ajis02-298	62	2	4	4	NUM
ajis02-298	62	3	discusses	discuss	VERB
ajis02-298	62	4	the	the	DET
ajis02-298	62	5	insights	insight	NOUN
ajis02-298	62	6	gained	gain	VERB
ajis02-298	62	7	in	in	ADP
ajis02-298	62	8	the	the	DET
ajis02-298	62	9	previous	previous	ADJ
ajis02-298	62	10	section	section	NOUN
ajis02-298	62	11	,	,	PUNCT
ajis02-298	62	12	as	as	ADV
ajis02-298	62	13	well	well	ADV
ajis02-298	62	14	as	as	ADP
ajis02-298	62	15	a	a	DET
ajis02-298	62	16	comparison	comparison	NOUN
ajis02-298	62	17	to	to	ADP
ajis02-298	62	18	previous	previous	ADJ
ajis02-298	62	19	work	work	NOUN
ajis02-298	62	20	.	.	PUNCT
ajis02-298	63	1	17paulson	17paulson	NOUN
ajis02-298	63	2	's	's	PART
ajis02-298	63	3	list	list	NOUN
ajis02-298	63	4	of	of	ADP
ajis02-298	63	5	theorem	theorem	ADJ
ajis02-298	63	6	provers	prover	NOUN
ajis02-298	63	7	http	http	VERB
ajis02-298	63	8	:	:	PUNCT
ajis02-298	63	9	/	/	SYM
ajis02-298	64	1	/www	/www	INTJ
ajis02-298	64	2	.	.	PUNCT
ajis02-298	65	1	el	el	PROPN
ajis02-298	65	2	.	.	PROPN
ajis02-298	65	3	cam	cam	PROPN
ajis02-298	65	4	.	.	PUNCT
ajis02-298	66	1	ac	ac	PROPN
ajis02-298	66	2	.	.	PUNCT
ajis02-298	67	1	uk	uk	PROPN
ajis02-298	67	2	/	/	SYM
ajis02-298	67	3	users	user	NOUN
ajis02-298	67	4	/	/	SYM
ajis02-298	67	5	icp/	icp/	NUM
ajis02-298	67	6	18pvs	18pvs	PRON
ajis02-298	67	7	frequently	frequently	ADV
ajis02-298	67	8	asked	ask	VERB
ajis02-298	67	9	questions	question	NOUN
ajis02-298	67	10	and	and	CCONJ
ajis02-298	67	11	bug	bug	NOUN
ajis02-298	67	12	tracking	tracking	NOUN
ajis02-298	67	13	database	database	NOUN
ajis02-298	67	14	.	.	PUNCT
ajis02-298	68	1	sri	sri	PROPN
ajis02-298	68	2	computer	computer	NOUN
ajis02-298	68	3	science	science	NOUN
ajis02-298	68	4	laboratory	laboratory	NOUN
ajis02-298	68	5	,	,	PUNCT
ajis02-298	68	6	menlo	menlo	NOUN
ajis02-298	68	7	park	park	NOUN
ajis02-298	68	8	,	,	PUNCT
ajis02-298	68	9	ca	ca	PROPN
ajis02-298	68	10	,	,	PUNCT
ajis02-298	68	11	usa	usa	PROPN
ajis02-298	68	12	.	.	PROPN
ajis02-298	68	13	http://pvs.csl.sri.com/bugs.html	http://pvs.csl.sri.com/bugs.html	PROPN
ajis02-298	68	14	147	147	NUM
ajis02-298	68	15	an	an	DET
ajis02-298	68	16	access	access	NOUN
ajis02-298	68	17	control	control	NOUN
ajis02-298	68	18	system	system	NOUN
ajis02-298	68	19	in	in	ADP
ajis02-298	68	20	this	this	DET
ajis02-298	68	21	section	section	NOUN
ajis02-298	68	22	,	,	PUNCT
ajis02-298	68	23	some	some	PRON
ajis02-298	68	24	of	of	ADP
ajis02-298	68	25	ssd	ssd	NOUN
ajis02-298	68	26	's	's	PART
ajis02-298	68	27	features	feature	NOUN
ajis02-298	68	28	will	will	AUX
ajis02-298	68	29	be	be	AUX
ajis02-298	68	30	presented	present	VERB
ajis02-298	68	31	,	,	PUNCT
ajis02-298	68	32	including	include	VERB
ajis02-298	68	33	the	the	DET
ajis02-298	68	34	notions	notion	NOUN
ajis02-298	68	35	of	of	ADP
ajis02-298	68	36	guard	guard	NOUN
ajis02-298	68	37	,	,	PUNCT
ajis02-298	68	38	round	round	ADJ
ajis02-298	68	39	,	,	PUNCT
ajis02-298	68	40	station	station	NOUN
ajis02-298	68	41	,	,	PUNCT
ajis02-298	68	42	target	target	NOUN
ajis02-298	68	43	,	,	PUNCT
ajis02-298	68	44	and	and	CCONJ
ajis02-298	68	45	in	in	ADP
ajis02-298	68	46	particular	particular	ADJ
ajis02-298	68	47	switches	switch	NOUN
ajis02-298	68	48	.	.	PUNCT
ajis02-298	69	1	basic	basic	ADJ
ajis02-298	69	2	features	feature	NOUN
ajis02-298	69	3	ssd	ssd	NOUN
ajis02-298	69	4	is	be	AUX
ajis02-298	69	5	one	one	NUM
ajis02-298	69	6	module	module	NOUN
ajis02-298	69	7	of	of	ADP
ajis02-298	69	8	an	an	DET
ajis02-298	69	9	access	access	NOUN
ajis02-298	69	10	control	control	NOUN
ajis02-298	69	11	system	system	NOUN
ajis02-298	69	12	called	call	VERB
ajis02-298	69	13	css	css	PROPN
ajis02-298	69	14	.	.	PROPN
ajis02-298	69	15	ssd	ssd	PROPN
ajis02-298	69	16	provides	provide	VERB
ajis02-298	69	17	an	an	DET
ajis02-298	69	18	interface	interface	NOUN
ajis02-298	69	19	between	between	ADP
ajis02-298	69	20	the	the	DET
ajis02-298	69	21	guards	guard	NOUN
ajis02-298	69	22	on	on	ADP
ajis02-298	69	23	duty	duty	NOUN
ajis02-298	69	24	,	,	PUNCT
ajis02-298	69	25	devices	device	NOUN
ajis02-298	69	26	like	like	ADP
ajis02-298	69	27	intrusion	intrusion	NOUN
ajis02-298	69	28	-	-	PUNCT
ajis02-298	69	29	circuits	circuit	NOUN
ajis02-298	69	30	,	,	PUNCT
ajis02-298	69	31	and	and	CCONJ
ajis02-298	69	32	the	the	DET
ajis02-298	69	33	operator	operator	NOUN
ajis02-298	69	34	.	.	PUNCT
ajis02-298	70	1	the	the	DET
ajis02-298	70	2	basic	basic	ADJ
ajis02-298	70	3	principle	principle	NOUN
ajis02-298	70	4	is	be	AUX
ajis02-298	70	5	as	as	SCONJ
ajis02-298	70	6	follows	follow	VERB
ajis02-298	70	7	:	:	PUNCT
ajis02-298	70	8	a	a	DET
ajis02-298	70	9	number	number	NOUN
ajis02-298	70	10	of	of	ADP
ajis02-298	70	11	guards	guard	NOUN
ajis02-298	70	12	supervise	supervise	VERB
ajis02-298	70	13	a	a	DET
ajis02-298	70	14	physical	physical	ADJ
ajis02-298	70	15	plant	plant	NOUN
ajis02-298	70	16	by	by	ADP
ajis02-298	70	17	night	night	NOUN
ajis02-298	70	18	.	.	PUNCT
ajis02-298	71	1	by	by	ADP
ajis02-298	71	2	means	mean	NOUN
ajis02-298	71	3	of	of	ADP
ajis02-298	71	4	rounds	round	NOUN
ajis02-298	71	5	,	,	PUNCT
ajis02-298	71	6	the	the	DET
ajis02-298	71	7	plant	plant	NOUN
ajis02-298	71	8	is	be	AUX
ajis02-298	71	9	divided	divide	VERB
ajis02-298	71	10	in	in	ADP
ajis02-298	71	11	areas	area	NOUN
ajis02-298	71	12	.	.	PUNCT
ajis02-298	72	1	each	each	DET
ajis02-298	72	2	round	round	NOUN
ajis02-298	72	3	consists	consist	VERB
ajis02-298	72	4	of	of	ADP
ajis02-298	72	5	a	a	DET
ajis02-298	72	6	list	list	NOUN
ajis02-298	72	7	of	of	ADP
ajis02-298	72	8	stations	station	NOUN
ajis02-298	72	9	.	.	PUNCT
ajis02-298	73	1	the	the	DET
ajis02-298	73	2	guards	guard	NOUN
ajis02-298	73	3	are	be	AUX
ajis02-298	73	4	required	require	VERB
ajis02-298	73	5	to	to	PART
ajis02-298	73	6	visit	visit	VERB
ajis02-298	73	7	(	(	PUNCT
ajis02-298	73	8	and	and	CCONJ
ajis02-298	73	9	"	"	PUNCT
ajis02-298	73	10	hit	hit	VERB
ajis02-298	73	11	"	"	PUNCT
ajis02-298	73	12	)	)	PUNCT
ajis02-298	73	13	stations	station	VERB
ajis02-298	73	14	one	one	NUM
ajis02-298	73	15	-	-	PUNCT
ajis02-298	73	16	by	by	ADP
ajis02-298	73	17	-	-	PUNCT
ajis02-298	73	18	one	one	NOUN
ajis02-298	73	19	.	.	PUNCT
ajis02-298	74	1	this	this	DET
ajis02-298	74	2	principle	principle	NOUN
ajis02-298	74	3	is	be	AUX
ajis02-298	74	4	illustrated	illustrate	VERB
ajis02-298	74	5	by	by	ADP
ajis02-298	74	6	fig	fig	NOUN
ajis02-298	74	7	.	.	PUNCT
ajis02-298	75	1	2	2	X
ajis02-298	75	2	.	.	X
ajis02-298	75	3	factory	factory	NOUN
ajis02-298	75	4	,	,	PUNCT
ajis02-298	75	5	bank	bank	NOUN
ajis02-298	75	6	,	,	PUNCT
ajis02-298	75	7	...	...	PUNCT
ajis02-298	75	8	:	:	PUNCT
ajis02-298	75	9	by	by	ADP
ajis02-298	75	10	night	night	NOUN
ajis02-298	75	11	figure	figure	NOUN
ajis02-298	75	12	2	2	NUM
ajis02-298	75	13	:	:	PUNCT
ajis02-298	75	14	a	a	DET
ajis02-298	75	15	site	site	NOUN
ajis02-298	75	16	to	to	PART
ajis02-298	75	17	be	be	AUX
ajis02-298	75	18	supervised	supervise	VERB
ajis02-298	75	19	by	by	ADP
ajis02-298	75	20	a	a	DET
ajis02-298	75	21	guard	guard	NOUN
ajis02-298	75	22	.	.	PUNCT
ajis02-298	76	1	stations	station	NOUN
ajis02-298	76	2	are	be	AUX
ajis02-298	76	3	physical	physical	ADJ
ajis02-298	76	4	devices	device	NOUN
ajis02-298	76	5	(	(	PUNCT
ajis02-298	76	6	terminals	terminal	NOUN
ajis02-298	76	7	)	)	PUNCT
ajis02-298	76	8	which	which	PRON
ajis02-298	76	9	are	be	AUX
ajis02-298	76	10	spread	spread	VERB
ajis02-298	76	11	over	over	ADP
ajis02-298	76	12	the	the	DET
ajis02-298	76	13	site	site	NOUN
ajis02-298	76	14	.	.	PUNCT
ajis02-298	77	1	stations	station	NOUN
ajis02-298	77	2	are	be	AUX
ajis02-298	77	3	shown	show	VERB
ajis02-298	77	4	as	as	ADP
ajis02-298	77	5	terminals	terminal	NOUN
ajis02-298	77	6	over	over	ADP
ajis02-298	77	7	triangles	triangle	NOUN
ajis02-298	77	8	.	.	PUNCT
ajis02-298	78	1	the	the	DET
ajis02-298	78	2	area	area	NOUN
ajis02-298	78	3	to	to	PART
ajis02-298	78	4	be	be	AUX
ajis02-298	78	5	supervised	supervise	VERB
ajis02-298	78	6	is	be	AUX
ajis02-298	78	7	defined	define	VERB
ajis02-298	78	8	by	by	ADP
ajis02-298	78	9	a	a	DET
ajis02-298	78	10	series	series	NOUN
ajis02-298	78	11	of	of	ADP
ajis02-298	78	12	stations	station	NOUN
ajis02-298	78	13	,	,	PUNCT
ajis02-298	78	14	called	call	VERB
ajis02-298	78	15	a	a	DET
ajis02-298	78	16	round	round	NOUN
ajis02-298	78	17	.	.	PUNCT
ajis02-298	79	1	stations	station	NOUN
ajis02-298	79	2	which	which	PRON
ajis02-298	79	3	shall	shall	AUX
ajis02-298	79	4	be	be	AUX
ajis02-298	79	5	visited	visit	VERB
ajis02-298	79	6	by	by	ADP
ajis02-298	79	7	the	the	DET
ajis02-298	79	8	guard	guard	NOUN
ajis02-298	79	9	are	be	AUX
ajis02-298	79	10	marked	mark	VERB
ajis02-298	79	11	in	in	ADP
ajis02-298	79	12	black	black	ADJ
ajis02-298	79	13	.	.	PUNCT
ajis02-298	80	1	the	the	DET
ajis02-298	80	2	most	most	ADV
ajis02-298	80	3	obvious	obvious	ADJ
ajis02-298	80	4	task	task	NOUN
ajis02-298	80	5	of	of	ADP
ajis02-298	80	6	a	a	DET
ajis02-298	80	7	guard	guard	NOUN
ajis02-298	80	8	is	be	AUX
ajis02-298	80	9	to	to	PART
ajis02-298	80	10	visit	visit	VERB
ajis02-298	80	11	stations	station	NOUN
ajis02-298	80	12	.	.	PUNCT
ajis02-298	81	1	typically	typically	ADV
ajis02-298	81	2	,	,	PUNCT
ajis02-298	81	3	in	in	ADP
ajis02-298	81	4	one	one	NUM
ajis02-298	81	5	round	round	NOUN
ajis02-298	81	6	,	,	PUNCT
ajis02-298	81	7	there	there	PRON
ajis02-298	81	8	is	be	VERB
ajis02-298	81	9	one	one	NUM
ajis02-298	81	10	guard	guard	NOUN
ajis02-298	81	11	.	.	PUNCT
ajis02-298	82	1	the	the	DET
ajis02-298	82	2	system	system	NOUN
ajis02-298	82	3	and	and	CCONJ
ajis02-298	82	4	the	the	DET
ajis02-298	82	5	entirety	entirety	NOUN
ajis02-298	82	6	of	of	ADP
ajis02-298	82	7	guards	guard	NOUN
ajis02-298	82	8	are	be	AUX
ajis02-298	82	9	supervised	supervise	VERB
ajis02-298	82	10	by	by	ADP
ajis02-298	82	11	an	an	DET
ajis02-298	82	12	operator	operator	NOUN
ajis02-298	82	13	.	.	PUNCT
ajis02-298	83	1	the	the	DET
ajis02-298	83	2	operator	operator	NOUN
ajis02-298	83	3	interface	interface	NOUN
ajis02-298	83	4	includes	include	VERB
ajis02-298	83	5	features	feature	NOUN
ajis02-298	83	6	to	to	PART
ajis02-298	83	7	select	select	VERB
ajis02-298	83	8	,	,	PUNCT
ajis02-298	83	9	interrupt	interrupt	ADJ
ajis02-298	83	10	,	,	PUNCT
ajis02-298	83	11	and	and	CCONJ
ajis02-298	83	12	terminate	terminate	NOUN
ajis02-298	83	13	rounds	round	NOUN
ajis02-298	83	14	.	.	PUNCT
ajis02-298	84	1	he	he	PRON
ajis02-298	84	2	or	or	CCONJ
ajis02-298	84	3	she	she	PRON
ajis02-298	84	4	may	may	AUX
ajis02-298	84	5	also	also	ADV
ajis02-298	84	6	take	take	VERB
ajis02-298	84	7	stations	station	NOUN
ajis02-298	84	8	out	out	ADP
ajis02-298	84	9	of	of	ADP
ajis02-298	84	10	order	order	NOUN
ajis02-298	84	11	temporarily	temporarily	ADV
ajis02-298	84	12	(	(	PUNCT
ajis02-298	84	13	deactivate	deactivate	VERB
ajis02-298	84	14	them	they	PRON
ajis02-298	84	15	)	)	PUNCT
ajis02-298	84	16	,	,	PUNCT
ajis02-298	84	17	or	or	CCONJ
ajis02-298	84	18	enable	enable	VERB
ajis02-298	84	19	the	the	DET
ajis02-298	84	20	guard	guard	NOUN
ajis02-298	84	21	to	to	PART
ajis02-298	84	22	continue	continue	VERB
ajis02-298	84	23	the	the	DET
ajis02-298	84	24	round	round	NOUN
ajis02-298	84	25	at	at	ADP
ajis02-298	84	26	any	any	DET
ajis02-298	84	27	station	station	NOUN
ajis02-298	84	28	if	if	SCONJ
ajis02-298	84	29	the	the	DET
ajis02-298	84	30	round	round	NOUN
ajis02-298	84	31	has	have	AUX
ajis02-298	84	32	been	be	AUX
ajis02-298	84	33	interrupted	interrupt	VERB
ajis02-298	84	34	.	.	PUNCT
ajis02-298	85	1	advanced	advanced	ADJ
ajis02-298	85	2	features	feature	NOUN
ajis02-298	85	3	ssd	ssd	NOUN
ajis02-298	85	4	supports	support	VERB
ajis02-298	85	5	more	more	ADV
ajis02-298	85	6	advanced	advanced	ADJ
ajis02-298	85	7	features	feature	NOUN
ajis02-298	85	8	,	,	PUNCT
ajis02-298	85	9	including	include	VERB
ajis02-298	85	10	the	the	DET
ajis02-298	85	11	following	following	NOUN
ajis02-298	85	12	:	:	PUNCT
ajis02-298	85	13	a	a	DET
ajis02-298	85	14	guard	guard	NOUN
ajis02-298	85	15	may	may	AUX
ajis02-298	85	16	be	be	AUX
ajis02-298	85	17	on	on	ADP
ajis02-298	85	18	his	his	PRON
ajis02-298	85	19	own	own	ADJ
ajis02-298	85	20	,	,	PUNCT
ajis02-298	85	21	and	and	CCONJ
ajis02-298	85	22	two	two	NUM
ajis02-298	85	23	guards	guard	NOUN
ajis02-298	85	24	may	may	AUX
ajis02-298	85	25	form	form	VERB
ajis02-298	85	26	a	a	DET
ajis02-298	85	27	team	team	NOUN
ajis02-298	85	28	.	.	PUNCT
ajis02-298	86	1	rounds	round	NOUN
ajis02-298	86	2	may	may	AUX
ajis02-298	86	3	run	run	VERB
ajis02-298	86	4	in	in	ADP
ajis02-298	86	5	parallel	parallel	NOUN
ajis02-298	86	6	,	,	PUNCT
ajis02-298	86	7	and	and	CCONJ
ajis02-298	86	8	share	share	NOUN
ajis02-298	86	9	stations	station	NOUN
ajis02-298	86	10	.	.	PUNCT
ajis02-298	87	1	under	under	ADP
ajis02-298	87	2	certain	certain	ADJ
ajis02-298	87	3	circumstances	circumstance	NOUN
ajis02-298	87	4	,	,	PUNCT
ajis02-298	87	5	a	a	DET
ajis02-298	87	6	guard	guard	NOUN
ajis02-298	87	7	may	may	AUX
ajis02-298	87	8	hit	hit	VERB
ajis02-298	87	9	a	a	DET
ajis02-298	87	10	station	station	NOUN
ajis02-298	87	11	of	of	ADP
ajis02-298	87	12	another	another	DET
ajis02-298	87	13	guard	guard	NOUN
ajis02-298	87	14	's	's	PART
ajis02-298	87	15	round	round	NOUN
ajis02-298	87	16	.	.	PUNCT
ajis02-298	88	1	the	the	DET
ajis02-298	88	2	guard	guard	NOUN
ajis02-298	88	3	's	's	PART
ajis02-298	88	4	identity	identity	NOUN
ajis02-298	88	5	has	have	VERB
ajis02-298	88	6	to	to	PART
ajis02-298	88	7	be	be	AUX
ajis02-298	88	8	checked	check	VERB
ajis02-298	88	9	whenever	whenever	SCONJ
ajis02-298	88	10	a	a	DET
ajis02-298	88	11	station	station	NOUN
ajis02-298	88	12	has	have	AUX
ajis02-298	88	13	been	be	AUX
ajis02-298	88	14	hit	hit	VERB
ajis02-298	88	15	.	.	PUNCT
ajis02-298	89	1	however	however	ADV
ajis02-298	89	2	,	,	PUNCT
ajis02-298	89	3	there	there	PRON
ajis02-298	89	4	are	be	VERB
ajis02-298	89	5	stations	station	NOUN
ajis02-298	89	6	which	which	PRON
ajis02-298	89	7	do	do	AUX
ajis02-298	89	8	not	not	PART
ajis02-298	89	9	return	return	VERB
ajis02-298	89	10	the	the	DET
ajis02-298	89	11	identity	identity	NOUN
ajis02-298	89	12	of	of	ADP
ajis02-298	89	13	the	the	DET
ajis02-298	89	14	guard	guard	NOUN
ajis02-298	89	15	.	.	PUNCT
ajis02-298	90	1	if	if	SCONJ
ajis02-298	90	2	the	the	DET
ajis02-298	90	3	guard	guard	NOUN
ajis02-298	90	4	is	be	AUX
ajis02-298	90	5	threatened	threaten	VERB
ajis02-298	90	6	by	by	ADP
ajis02-298	90	7	an	an	DET
ajis02-298	90	8	intruder	intruder	NOUN
ajis02-298	90	9	,	,	PUNCT
ajis02-298	90	10	the	the	DET
ajis02-298	90	11	guard	guard	NOUN
ajis02-298	90	12	can	can	AUX
ajis02-298	90	13	make	make	VERB
ajis02-298	90	14	use	use	NOUN
ajis02-298	90	15	of	of	ADP
ajis02-298	90	16	a	a	DET
ajis02-298	90	17	feature	feature	NOUN
ajis02-298	90	18	called	call	VERB
ajis02-298	90	19	"	"	PUNCT
ajis02-298	90	20	silent	silent	ADJ
ajis02-298	90	21	operator	operator	NOUN
ajis02-298	90	22	notification	notification	NOUN
ajis02-298	90	23	"	"	PUNCT
ajis02-298	90	24	.	.	PUNCT
ajis02-298	91	1	there	there	PRON
ajis02-298	91	2	is	be	VERB
ajis02-298	91	3	a	a	DET
ajis02-298	91	4	range	range	NOUN
ajis02-298	91	5	of	of	ADP
ajis02-298	91	6	causes	cause	NOUN
ajis02-298	91	7	which	which	PRON
ajis02-298	91	8	cause	cause	VERB
ajis02-298	91	9	a	a	DET
ajis02-298	91	10	round	round	NOUN
ajis02-298	91	11	to	to	PART
ajis02-298	91	12	be	be	AUX
ajis02-298	91	13	interrupted	interrupt	VERB
ajis02-298	91	14	.	.	PUNCT
ajis02-298	92	1	then	then	ADV
ajis02-298	92	2	,	,	PUNCT
ajis02-298	92	3	as	as	ADP
ajis02-298	92	4	part	part	NOUN
ajis02-298	92	5	of	of	ADP
ajis02-298	92	6	a	a	DET
ajis02-298	92	7	recovery	recovery	NOUN
ajis02-298	92	8	procedure	procedure	NOUN
ajis02-298	92	9	,	,	PUNCT
ajis02-298	92	10	the	the	DET
ajis02-298	92	11	operator	operator	NOUN
ajis02-298	92	12	must	must	AUX
ajis02-298	92	13	clear	clear	VERB
ajis02-298	92	14	the	the	DET
ajis02-298	92	15	interrupt	interrupt	ADJ
ajis02-298	92	16	.	.	PUNCT
ajis02-298	93	1	to	to	PART
ajis02-298	93	2	catch	catch	VERB
ajis02-298	93	3	up	up	ADP
ajis02-298	93	4	after	after	ADP
ajis02-298	93	5	a	a	DET
ajis02-298	93	6	(	(	PUNCT
ajis02-298	93	7	possible	possible	ADJ
ajis02-298	93	8	)	)	PUNCT
ajis02-298	93	9	delay	delay	NOUN
ajis02-298	93	10	that	that	PRON
ajis02-298	93	11	has	have	AUX
ajis02-298	93	12	occurred	occur	VERB
ajis02-298	93	13	after	after	ADP
ajis02-298	93	14	an	an	DET
ajis02-298	93	15	interrupt	interrupt	ADJ
ajis02-298	93	16	,	,	PUNCT
ajis02-298	93	17	the	the	DET
ajis02-298	93	18	operator	operator	NOUN
ajis02-298	93	19	may	may	AUX
ajis02-298	93	20	enable	enable	VERB
ajis02-298	93	21	the	the	DET
ajis02-298	93	22	guard	guard	NOUN
ajis02-298	93	23	to	to	PART
ajis02-298	93	24	skip	skip	VERB
ajis02-298	93	25	any	any	PRON
ajis02-298	93	26	of	of	ADP
ajis02-298	93	27	the	the	DET
ajis02-298	93	28	following	follow	VERB
ajis02-298	93	29	stations	station	NOUN
ajis02-298	93	30	.	.	PUNCT
ajis02-298	94	1	one	one	NUM
ajis02-298	94	2	of	of	ADP
ajis02-298	94	3	ssd	ssd	NOUN
ajis02-298	94	4	's	's	PART
ajis02-298	94	5	advanced	advanced	ADJ
ajis02-298	94	6	features	feature	NOUN
ajis02-298	94	7	is	be	AUX
ajis02-298	94	8	the	the	DET
ajis02-298	94	9	switching	switch	VERB
ajis02-298	94	10	mechanism	mechanism	NOUN
ajis02-298	94	11	.	.	PUNCT
ajis02-298	95	1	148	148	NUM
ajis02-298	95	2	switches	switch	NOUN
ajis02-298	95	3	css	css	PROPN
ajis02-298	95	4	is	be	AUX
ajis02-298	95	5	a	a	DET
ajis02-298	95	6	system	system	NOUN
ajis02-298	95	7	which	which	PRON
ajis02-298	95	8	may	may	AUX
ajis02-298	95	9	be	be	AUX
ajis02-298	95	10	used	use	VERB
ajis02-298	95	11	for	for	ADP
ajis02-298	95	12	night	night	NOUN
ajis02-298	95	13	-	-	PUNCT
ajis02-298	95	14	time	time	NOUN
ajis02-298	95	15	supervision	supervision	NOUN
ajis02-298	95	16	of	of	ADP
ajis02-298	95	17	physical	physical	ADJ
ajis02-298	95	18	plants	plant	NOUN
ajis02-298	95	19	.	.	PUNCT
ajis02-298	96	1	at	at	ADP
ajis02-298	96	2	night	night	NOUN
ajis02-298	96	3	,	,	PUNCT
ajis02-298	96	4	doors	door	NOUN
ajis02-298	96	5	are	be	AUX
ajis02-298	96	6	usually	usually	ADV
ajis02-298	96	7	locked	lock	VERB
ajis02-298	96	8	,	,	PUNCT
ajis02-298	96	9	lights	light	NOUN
ajis02-298	96	10	are	be	AUX
ajis02-298	96	11	off	off	ADP
ajis02-298	96	12	and	and	CCONJ
ajis02-298	96	13	intrusion	intrusion	NOUN
ajis02-298	96	14	circuits	circuit	NOUN
ajis02-298	96	15	are	be	AUX
ajis02-298	96	16	activated	activate	VERB
ajis02-298	96	17	.	.	PUNCT
ajis02-298	97	1	all	all	PRON
ajis02-298	97	2	of	of	ADP
ajis02-298	97	3	these	these	DET
ajis02-298	97	4	items	item	NOUN
ajis02-298	97	5	represent	represent	VERB
ajis02-298	97	6	obstacles	obstacle	NOUN
ajis02-298	97	7	for	for	ADP
ajis02-298	97	8	the	the	DET
ajis02-298	97	9	guards	guard	NOUN
ajis02-298	97	10	who	who	PRON
ajis02-298	97	11	need	need	VERB
ajis02-298	97	12	to	to	PART
ajis02-298	97	13	circulate	circulate	VERB
ajis02-298	97	14	.	.	PUNCT
ajis02-298	98	1	a	a	DET
ajis02-298	98	2	switching	switch	VERB
ajis02-298	98	3	mechanism	mechanism	NOUN
ajis02-298	98	4	is	be	AUX
ajis02-298	98	5	concerned	concern	VERB
ajis02-298	98	6	with	with	ADP
ajis02-298	98	7	unblocking	unblock	VERB
ajis02-298	98	8	and	and	CCONJ
ajis02-298	98	9	blocking	blocking	NOUN
ajis02-298	98	10	of	of	ADP
ajis02-298	98	11	these	these	DET
ajis02-298	98	12	obstacles	obstacle	NOUN
ajis02-298	98	13	whenever	whenever	SCONJ
ajis02-298	98	14	it	it	PRON
ajis02-298	98	15	is	be	AUX
ajis02-298	98	16	necessary	necessary	ADJ
ajis02-298	98	17	.	.	PUNCT
ajis02-298	99	1	essentially	essentially	ADV
ajis02-298	99	2	,	,	PUNCT
ajis02-298	99	3	the	the	DET
ajis02-298	99	4	guard	guard	NOUN
ajis02-298	99	5	's	's	PART
ajis02-298	99	6	interface	interface	NOUN
ajis02-298	99	7	to	to	ADP
ajis02-298	99	8	the	the	DET
ajis02-298	99	9	system	system	NOUN
ajis02-298	99	10	is	be	AUX
ajis02-298	99	11	restricted	restrict	VERB
ajis02-298	99	12	to	to	ADP
ajis02-298	99	13	a	a	DET
ajis02-298	99	14	location	location	NOUN
ajis02-298	99	15	mechanism	mechanism	NOUN
ajis02-298	99	16	:	:	PUNCT
ajis02-298	99	17	when	when	SCONJ
ajis02-298	99	18	a	a	DET
ajis02-298	99	19	guard	guard	NOUN
ajis02-298	99	20	has	have	AUX
ajis02-298	99	21	hit	hit	VERB
ajis02-298	99	22	a	a	DET
ajis02-298	99	23	station	station	NOUN
ajis02-298	99	24	,	,	PUNCT
ajis02-298	99	25	the	the	DET
ajis02-298	99	26	system	system	NOUN
ajis02-298	99	27	is	be	AUX
ajis02-298	99	28	aware	aware	ADJ
ajis02-298	99	29	of	of	ADP
ajis02-298	99	30	the	the	DET
ajis02-298	99	31	position	position	NOUN
ajis02-298	99	32	of	of	ADP
ajis02-298	99	33	the	the	DET
ajis02-298	99	34	guard	guard	NOUN
ajis02-298	99	35	in	in	ADP
ajis02-298	99	36	the	the	DET
ajis02-298	99	37	site	site	NOUN
ajis02-298	99	38	.	.	PUNCT
ajis02-298	100	1	unblocking	unblock	VERB
ajis02-298	100	2	(	(	PUNCT
ajis02-298	100	3	and	and	CCONJ
ajis02-298	100	4	blocking	block	VERB
ajis02-298	100	5	)	)	PUNCT
ajis02-298	100	6	must	must	AUX
ajis02-298	100	7	take	take	VERB
ajis02-298	100	8	place	place	NOUN
ajis02-298	100	9	automatically	automatically	ADV
ajis02-298	100	10	.	.	PUNCT
ajis02-298	101	1	since	since	SCONJ
ajis02-298	101	2	such	such	DET
ajis02-298	101	3	a	a	DET
ajis02-298	101	4	switch	switch	NOUN
ajis02-298	101	5	triggers	trigger	VERB
ajis02-298	101	6	the	the	DET
ajis02-298	101	7	submission	submission	NOUN
ajis02-298	101	8	of	of	ADP
ajis02-298	101	9	data	datum	NOUN
ajis02-298	101	10	to	to	ADP
ajis02-298	101	11	one	one	NUM
ajis02-298	101	12	(	(	PUNCT
ajis02-298	101	13	or	or	CCONJ
ajis02-298	101	14	many	many	ADJ
ajis02-298	101	15	)	)	PUNCT
ajis02-298	101	16	obstacles	obstacle	NOUN
ajis02-298	101	17	,	,	PUNCT
ajis02-298	101	18	they	they	PRON
ajis02-298	101	19	are	be	AUX
ajis02-298	101	20	also	also	ADV
ajis02-298	101	21	called	call	VERB
ajis02-298	101	22	switch	switch	NOUN
ajis02-298	101	23	targets	target	NOUN
ajis02-298	101	24	or	or	CCONJ
ajis02-298	101	25	simply	simply	ADV
ajis02-298	101	26	targets	target	NOUN
ajis02-298	101	27	.	.	PUNCT
ajis02-298	102	1	each	each	DET
ajis02-298	102	2	target	target	NOUN
ajis02-298	102	3	may	may	AUX
ajis02-298	102	4	be	be	AUX
ajis02-298	102	5	in	in	ADP
ajis02-298	102	6	one	one	NUM
ajis02-298	102	7	of	of	ADP
ajis02-298	102	8	two	two	NUM
ajis02-298	102	9	states	state	NOUN
ajis02-298	102	10	:	:	PUNCT
ajis02-298	102	11	blocked	block	VERB
ajis02-298	102	12	or	or	CCONJ
ajis02-298	102	13	unblocked	unblocked	ADJ
ajis02-298	102	14	.	.	PUNCT
ajis02-298	103	1	when	when	SCONJ
ajis02-298	103	2	a	a	DET
ajis02-298	103	3	station	station	NOUN
ajis02-298	103	4	gets	get	AUX
ajis02-298	103	5	hit	hit	VERB
ajis02-298	103	6	by	by	ADP
ajis02-298	103	7	a	a	DET
ajis02-298	103	8	guard	guard	NOUN
ajis02-298	103	9	,	,	PUNCT
ajis02-298	103	10	switches	switch	NOUN
ajis02-298	103	11	may	may	AUX
ajis02-298	103	12	cause	cause	VERB
ajis02-298	103	13	the	the	DET
ajis02-298	103	14	state	state	NOUN
ajis02-298	103	15	of	of	ADP
ajis02-298	103	16	the	the	DET
ajis02-298	103	17	target	target	NOUN
ajis02-298	103	18	to	to	PART
ajis02-298	103	19	change	change	VERB
ajis02-298	103	20	.	.	PUNCT
ajis02-298	104	1	the	the	DET
ajis02-298	104	2	action	action	NOUN
ajis02-298	104	3	of	of	ADP
ajis02-298	104	4	unblocking	unblock	VERB
ajis02-298	104	5	a	a	DET
ajis02-298	104	6	target	target	NOUN
ajis02-298	104	7	is	be	AUX
ajis02-298	104	8	called	call	VERB
ajis02-298	104	9	an	an	DET
ajis02-298	104	10	entry	entry	NOUN
ajis02-298	104	11	-	-	PUNCT
ajis02-298	104	12	switch	switch	NOUN
ajis02-298	104	13	,	,	PUNCT
ajis02-298	104	14	and	and	CCONJ
ajis02-298	104	15	blocking	block	VERB
ajis02-298	104	16	the	the	DET
ajis02-298	104	17	target	target	NOUN
ajis02-298	104	18	is	be	AUX
ajis02-298	104	19	referred	refer	VERB
ajis02-298	104	20	to	to	ADP
ajis02-298	104	21	as	as	ADP
ajis02-298	104	22	an	an	DET
ajis02-298	104	23	exit	exit	NOUN
ajis02-298	104	24	-	-	PUNCT
ajis02-298	104	25	switch	switch	NOUN
ajis02-298	104	26	.	.	PUNCT
ajis02-298	105	1	this	this	DET
ajis02-298	105	2	principle	principle	NOUN
ajis02-298	105	3	is	be	AUX
ajis02-298	105	4	shown	show	VERB
ajis02-298	105	5	in	in	ADP
ajis02-298	105	6	fig	fig	NOUN
ajis02-298	105	7	.	.	PUNCT
ajis02-298	106	1	3	3	X
ajis02-298	106	2	.	.	PUNCT
ajis02-298	106	3	/\	/\	PUNCT
ajis02-298	107	1	e	e	PROPN
ajis02-298	107	2	n	n	ADP
ajis02-298	107	3	t	t	NOUN
ajis02-298	107	4	r	r	NOUN
ajis02-298	107	5	y	y	PROPN
ajis02-298	107	6	!	!	PUNCT
ajis02-298	108	1	[	[	X
ajis02-298	108	2	iden	iden	X
ajis02-298	108	3	t	t	X
ajis02-298	108	4	i	i	PRON
ajis02-298	108	5	fy	fy	PROPN
ajis02-298	108	6	!	!	PUNCT
ajis02-298	109	1	swi	swi	PROPN
ajis02-298	109	2	t	t	PROPN
ajis02-298	109	3	ch	ch	NOUN
ajis02-298	109	4	\	\	PROPN
ajis02-298	109	5	/	/	PUNCT
ajis02-298	109	6	a	a	DET
ajis02-298	109	7	station	station	NOUN
ajis02-298	109	8	n	n	CCONJ
ajis02-298	109	9	stat	stat	NOUN
ajis02-298	109	10	ion	ion	NOUN
ajis02-298	109	11	n+1	n+1	NUM
ajis02-298	109	12	figure	figure	NOUN
ajis02-298	109	13	3	3	NUM
ajis02-298	109	14	:	:	PUNCT
ajis02-298	109	15	part	part	NOUN
ajis02-298	109	16	of	of	ADP
ajis02-298	109	17	an	an	DET
ajis02-298	109	18	example	example	NOUN
ajis02-298	109	19	round	round	NOUN
ajis02-298	109	20	:	:	PUNCT
ajis02-298	109	21	the	the	DET
ajis02-298	109	22	guard	guard	NOUN
ajis02-298	109	23	first	first	ADV
ajis02-298	109	24	visits	visit	VERB
ajis02-298	109	25	some	some	DET
ajis02-298	109	26	station	station	NOUN
ajis02-298	109	27	n	n	ADP
ajis02-298	109	28	which	which	PRON
ajis02-298	109	29	causes	cause	VERB
ajis02-298	109	30	an	an	DET
ajis02-298	109	31	entry	entry	NOUN
ajis02-298	109	32	switch	switch	NOUN
ajis02-298	109	33	to	to	ADP
ajis02-298	109	34	the	the	DET
ajis02-298	109	35	given	give	VERB
ajis02-298	109	36	target	target	NOUN
ajis02-298	109	37	.	.	PUNCT
ajis02-298	110	1	the	the	DET
ajis02-298	110	2	guard	guard	NOUN
ajis02-298	110	3	then	then	ADV
ajis02-298	110	4	proceeds	proceed	VERB
ajis02-298	110	5	to	to	PART
ajis02-298	110	6	station	station	VERB
ajis02-298	110	7	n	n	NOUN
ajis02-298	110	8	+	+	CCONJ
ajis02-298	110	9	1	1	NUM
ajis02-298	110	10	,	,	PUNCT
ajis02-298	110	11	which	which	PRON
ajis02-298	110	12	will	will	AUX
ajis02-298	110	13	send	send	VERB
ajis02-298	110	14	an	an	DET
ajis02-298	110	15	exit	exit	NOUN
ajis02-298	110	16	switch	switch	NOUN
ajis02-298	110	17	.	.	PUNCT
ajis02-298	111	1	unfortunately	unfortunately	ADV
ajis02-298	111	2	,	,	PUNCT
ajis02-298	111	3	the	the	DET
ajis02-298	111	4	switches	switch	NOUN
ajis02-298	111	5	principle	principle	NOUN
ajis02-298	111	6	becomes	become	VERB
ajis02-298	111	7	(	(	PUNCT
ajis02-298	111	8	unnecessarily	unnecessarily	ADV
ajis02-298	111	9	)	)	PUNCT
ajis02-298	111	10	more	more	ADV
ajis02-298	111	11	complicated	complicated	ADJ
ajis02-298	111	12	.	.	PUNCT
ajis02-298	112	1	first	first	ADV
ajis02-298	112	2	,	,	PUNCT
ajis02-298	112	3	parts	part	NOUN
ajis02-298	112	4	of	of	ADP
ajis02-298	112	5	the	the	DET
ajis02-298	112	6	requirements	requirement	NOUN
ajis02-298	112	7	are	be	AUX
ajis02-298	112	8	given	give	VERB
ajis02-298	112	9	on	on	ADP
ajis02-298	112	10	an	an	DET
ajis02-298	112	11	operational	operational	ADJ
ajis02-298	112	12	level	level	NOUN
ajis02-298	112	13	:	:	PUNCT
ajis02-298	112	14	rather	rather	ADV
ajis02-298	112	15	than	than	ADP
ajis02-298	112	16	stating	state	VERB
ajis02-298	112	17	the	the	DET
ajis02-298	112	18	properties	property	NOUN
ajis02-298	112	19	a	a	DET
ajis02-298	112	20	solution	solution	NOUN
ajis02-298	112	21	satisfying	satisfy	VERB
ajis02-298	112	22	the	the	DET
ajis02-298	112	23	requirements	requirement	NOUN
ajis02-298	112	24	shall	shall	AUX
ajis02-298	112	25	have	have	VERB
ajis02-298	112	26	,	,	PUNCT
ajis02-298	112	27	an	an	DET
ajis02-298	112	28	explicit	explicit	ADJ
ajis02-298	112	29	algorithm	algorithm	NOUN
ajis02-298	112	30	is	be	AUX
ajis02-298	112	31	proposed	propose	VERB
ajis02-298	112	32	.	.	PUNCT
ajis02-298	113	1	second	second	ADV
ajis02-298	113	2	,	,	PUNCT
ajis02-298	113	3	there	there	PRON
ajis02-298	113	4	are	be	VERB
ajis02-298	113	5	an	an	DET
ajis02-298	113	6	important	important	ADJ
ajis02-298	113	7	number	number	NOUN
ajis02-298	113	8	of	of	ADP
ajis02-298	113	9	special	special	ADJ
ajis02-298	113	10	cases	case	NOUN
ajis02-298	113	11	,	,	PUNCT
ajis02-298	113	12	which	which	PRON
ajis02-298	113	13	all	all	PRON
ajis02-298	113	14	need	need	VERB
ajis02-298	113	15	to	to	PART
ajis02-298	113	16	be	be	AUX
ajis02-298	113	17	treated	treat	VERB
ajis02-298	113	18	separately	separately	ADV
ajis02-298	113	19	.	.	PUNCT
ajis02-298	114	1	also	also	ADV
ajis02-298	114	2	,	,	PUNCT
ajis02-298	114	3	some	some	PRON
ajis02-298	114	4	of	of	ADP
ajis02-298	114	5	these	these	DET
ajis02-298	114	6	cases	case	NOUN
ajis02-298	114	7	may	may	AUX
ajis02-298	114	8	occur	occur	VERB
ajis02-298	114	9	simultaneously	simultaneously	ADV
ajis02-298	114	10	.	.	PUNCT
ajis02-298	115	1	motivation	motivation	NOUN
ajis02-298	115	2	for	for	ADP
ajis02-298	115	3	this	this	DET
ajis02-298	115	4	analysis	analysis	NOUN
ajis02-298	115	5	we	we	PRON
ajis02-298	115	6	will	will	AUX
ajis02-298	115	7	now	now	ADV
ajis02-298	115	8	show	show	VERB
ajis02-298	115	9	the	the	DET
ajis02-298	115	10	test	test	NOUN
ajis02-298	115	11	case	case	NOUN
ajis02-298	115	12	that	that	PRON
ajis02-298	115	13	has	have	AUX
ajis02-298	115	14	indicated	indicate	VERB
ajis02-298	115	15	that	that	SCONJ
ajis02-298	115	16	there	there	PRON
ajis02-298	115	17	are	be	VERB
ajis02-298	115	18	contradictions	contradiction	NOUN
ajis02-298	115	19	in	in	ADP
ajis02-298	115	20	the	the	DET
ajis02-298	115	21	requirements	requirement	NOUN
ajis02-298	115	22	.	.	PUNCT
ajis02-298	116	1	on	on	ADP
ajis02-298	116	2	the	the	DET
ajis02-298	116	3	way	way	NOUN
ajis02-298	116	4	through	through	ADP
ajis02-298	116	5	the	the	DET
ajis02-298	116	6	round	round	NOUN
ajis02-298	116	7	,	,	PUNCT
ajis02-298	116	8	the	the	DET
ajis02-298	116	9	guard	guard	NOUN
ajis02-298	116	10	has	have	VERB
ajis02-298	116	11	to	to	PART
ajis02-298	116	12	visit	visit	VERB
ajis02-298	116	13	stations	station	NOUN
ajis02-298	116	14	one	one	NUM
ajis02-298	116	15	after	after	ADP
ajis02-298	116	16	another	another	PRON
ajis02-298	116	17	.	.	PUNCT
ajis02-298	117	1	however	however	ADV
ajis02-298	117	2	,	,	PUNCT
ajis02-298	117	3	the	the	DET
ajis02-298	117	4	operator	operator	NOUN
ajis02-298	117	5	may	may	AUX
ajis02-298	117	6	temporarily	temporarily	ADV
ajis02-298	117	7	deactivate	deactivate	VERB
ajis02-298	117	8	single	single	ADJ
ajis02-298	117	9	stations	station	NOUN
ajis02-298	117	10	while	while	SCONJ
ajis02-298	117	11	leaving	leave	VERB
ajis02-298	117	12	the	the	DET
ajis02-298	117	13	round	round	ADJ
ajis02-298	117	14	functioning	functioning	NOUN
ajis02-298	117	15	.	.	PUNCT
ajis02-298	118	1	as	as	SCONJ
ajis02-298	118	2	pointed	point	VERB
ajis02-298	118	3	out	out	ADP
ajis02-298	118	4	above	above	ADV
ajis02-298	118	5	,	,	PUNCT
ajis02-298	118	6	for	for	ADP
ajis02-298	118	7	a	a	DET
ajis02-298	118	8	certain	certain	ADJ
ajis02-298	118	9	scenario	scenario	NOUN
ajis02-298	118	10	the	the	DET
ajis02-298	118	11	proposed	propose	VERB
ajis02-298	118	12	requirements	requirement	NOUN
ajis02-298	118	13	are	be	AUX
ajis02-298	118	14	known	know	VERB
ajis02-298	118	15	to	to	PART
ajis02-298	118	16	fail	fail	VERB
ajis02-298	118	17	:	:	PUNCT
ajis02-298	118	18	in	in	ADP
ajis02-298	118	19	a	a	DET
ajis02-298	118	20	round	round	NOUN
ajis02-298	118	21	with	with	ADP
ajis02-298	118	22	5	5	NUM
ajis02-298	118	23	stations	station	NOUN
ajis02-298	118	24	,	,	PUNCT
ajis02-298	118	25	number	number	NOUN
ajis02-298	118	26	2	2	NUM
ajis02-298	118	27	and	and	CCONJ
ajis02-298	118	28	4	4	NUM
ajis02-298	118	29	inactive	inactive	ADJ
ajis02-298	118	30	,	,	PUNCT
ajis02-298	118	31	the	the	DET
ajis02-298	118	32	guard	guard	NOUN
ajis02-298	118	33	may	may	AUX
ajis02-298	118	34	be	be	AUX
ajis02-298	118	35	unable	unable	ADJ
ajis02-298	118	36	to	to	PART
ajis02-298	118	37	finish	finish	VERB
ajis02-298	118	38	the	the	DET
ajis02-298	118	39	round	round	NOUN
ajis02-298	118	40	,	,	PUNCT
ajis02-298	118	41	because	because	SCONJ
ajis02-298	118	42	a	a	DET
ajis02-298	118	43	target	target	NOUN
ajis02-298	118	44	is	be	AUX
ajis02-298	118	45	impassable	impassable	ADJ
ajis02-298	118	46	.	.	PUNCT
ajis02-298	119	1	a	a	DET
ajis02-298	119	2	detailed	detailed	ADJ
ajis02-298	119	3	explanation	explanation	NOUN
ajis02-298	119	4	of	of	ADP
ajis02-298	119	5	why	why	SCONJ
ajis02-298	119	6	this	this	PRON
ajis02-298	119	7	is	be	AUX
ajis02-298	119	8	so	so	ADV
ajis02-298	119	9	goes	go	VERB
ajis02-298	119	10	beyond	beyond	ADP
ajis02-298	119	11	the	the	DET
ajis02-298	119	12	scope	scope	NOUN
ajis02-298	119	13	of	of	ADP
ajis02-298	119	14	this	this	DET
ajis02-298	119	15	paper	paper	NOUN
ajis02-298	119	16	.	.	PUNCT
ajis02-298	120	1	clearly	clearly	ADV
ajis02-298	120	2	this	this	DET
ajis02-298	120	3	given	give	VERB
ajis02-298	120	4	scenario	scenario	NOUN
ajis02-298	120	5	should	should	AUX
ajis02-298	120	6	not	not	PART
ajis02-298	120	7	require	require	VERB
ajis02-298	120	8	the	the	DET
ajis02-298	120	9	operator	operator	NOUN
ajis02-298	120	10	to	to	PART
ajis02-298	120	11	interfere	interfere	VERB
ajis02-298	120	12	.	.	PUNCT
ajis02-298	121	1	thus	thus	ADV
ajis02-298	121	2	,	,	PUNCT
ajis02-298	121	3	it	it	PRON
ajis02-298	121	4	is	be	AUX
ajis02-298	121	5	unacceptable	unacceptable	ADJ
ajis02-298	121	6	.	.	PUNCT
ajis02-298	122	1	system	system	NOUN
ajis02-298	122	2	size	size	NOUN
ajis02-298	122	3	the	the	DET
ajis02-298	122	4	present	present	ADJ
ajis02-298	122	5	paper	paper	NOUN
ajis02-298	122	6	reports	report	NOUN
ajis02-298	122	7	on	on	ADP
ajis02-298	122	8	one	one	NUM
ajis02-298	122	9	of	of	ADP
ajis02-298	122	10	a	a	DET
ajis02-298	122	11	series	series	NOUN
ajis02-298	122	12	of	of	ADP
ajis02-298	122	13	case	case	NOUN
ajis02-298	122	14	studies	study	NOUN
ajis02-298	122	15	.	.	PUNCT
ajis02-298	123	1	these	these	DET
ajis02-298	123	2	case	case	NOUN
ajis02-298	123	3	studies	study	NOUN
ajis02-298	123	4	and	and	CCONJ
ajis02-298	123	5	the	the	DET
ajis02-298	123	6	original	original	ADJ
ajis02-298	123	7	development	development	NOUN
ajis02-298	123	8	are	be	AUX
ajis02-298	123	9	carried	carry	VERB
ajis02-298	123	10	out	out	ADP
ajis02-298	123	11	in	in	ADP
ajis02-298	123	12	parallel	parallel	NOUN
ajis02-298	123	13	.	.	PUNCT
ajis02-298	124	1	they	they	PRON
ajis02-298	124	2	are	be	AUX
ajis02-298	124	3	all	all	ADV
ajis02-298	124	4	based	base	VERB
ajis02-298	124	5	on	on	ADP
ajis02-298	124	6	a	a	DET
ajis02-298	124	7	collection	collection	NOUN
ajis02-298	124	8	of	of	ADP
ajis02-298	124	9	60	60	NUM
ajis02-298	124	10	informal	informal	ADJ
ajis02-298	124	11	requirements	requirement	NOUN
ajis02-298	124	12	rules	rule	NOUN
ajis02-298	124	13	,	,	PUNCT
ajis02-298	124	14	given	give	VERB
ajis02-298	124	15	on	on	ADP
ajis02-298	124	16	10	10	NUM
ajis02-298	124	17	a4	a4	NOUN
ajis02-298	124	18	pages	page	NOUN
ajis02-298	124	19	.	.	PUNCT
ajis02-298	125	1	the	the	DET
ajis02-298	125	2	vdm	vdm	NOUN
ajis02-298	125	3	specification	specification	NOUN
ajis02-298	125	4	consists	consist	VERB
ajis02-298	125	5	of	of	ADP
ajis02-298	125	6	60	60	NUM
ajis02-298	125	7	a4	a4	NOUN
ajis02-298	125	8	pages	page	NOUN
ajis02-298	125	9	,	,	PUNCT
ajis02-298	125	10	and	and	CCONJ
ajis02-298	125	11	the	the	DET
ajis02-298	125	12	pvs	pvs	PROPN
ajis02-298	125	13	specification	specification	NOUN
ajis02-298	125	14	covering	cover	VERB
ajis02-298	125	15	only	only	ADV
ajis02-298	125	16	the	the	DET
ajis02-298	125	17	switches	switch	NOUN
ajis02-298	125	18	aspect	aspect	NOUN
ajis02-298	125	19	is	be	AUX
ajis02-298	125	20	about	about	ADV
ajis02-298	125	21	1000	1000	NUM
ajis02-298	125	22	lines	line	NOUN
ajis02-298	125	23	long	long	ADJ
ajis02-298	125	24	.	.	PUNCT
ajis02-298	126	1	149	149	NUM
ajis02-298	126	2	formal	formal	ADJ
ajis02-298	126	3	specification	specification	NOUN
ajis02-298	126	4	and	and	CCONJ
ajis02-298	126	5	analysis	analysis	NOUN
ajis02-298	126	6	the	the	DET
ajis02-298	126	7	previous	previous	ADJ
ajis02-298	126	8	section	section	NOUN
ajis02-298	126	9	has	have	AUX
ajis02-298	126	10	briefly	briefly	ADV
ajis02-298	126	11	introduced	introduce	VERB
ajis02-298	126	12	some	some	PRON
ajis02-298	126	13	of	of	ADP
ajis02-298	126	14	ssd	ssd	NOUN
ajis02-298	126	15	's	's	PART
ajis02-298	126	16	principles	principle	NOUN
ajis02-298	126	17	.	.	PUNCT
ajis02-298	127	1	in	in	ADP
ajis02-298	127	2	the	the	DET
ajis02-298	127	3	present	present	ADJ
ajis02-298	127	4	section	section	NOUN
ajis02-298	127	5	,	,	PUNCT
ajis02-298	127	6	the	the	DET
ajis02-298	127	7	discussion	discussion	NOUN
ajis02-298	127	8	will	will	AUX
ajis02-298	127	9	get	get	VERB
ajis02-298	127	10	a	a	DET
ajis02-298	127	11	little	little	ADJ
ajis02-298	127	12	more	more	ADV
ajis02-298	127	13	technical	technical	ADJ
ajis02-298	127	14	.	.	PUNCT
ajis02-298	128	1	first	first	ADV
ajis02-298	128	2	,	,	PUNCT
ajis02-298	128	3	a	a	DET
ajis02-298	128	4	formal	formal	ADJ
ajis02-298	128	5	specification	specification	NOUN
ajis02-298	128	6	will	will	AUX
ajis02-298	128	7	be	be	AUX
ajis02-298	128	8	developed	develop	VERB
ajis02-298	128	9	.	.	PUNCT
ajis02-298	129	1	it	it	PRON
ajis02-298	129	2	will	will	AUX
ajis02-298	129	3	then	then	ADV
ajis02-298	129	4	be	be	AUX
ajis02-298	129	5	used	use	VERB
ajis02-298	129	6	in	in	ADP
ajis02-298	129	7	the	the	DET
ajis02-298	129	8	proof	proof	NOUN
ajis02-298	129	9	of	of	ADP
ajis02-298	129	10	safety	safety	NOUN
ajis02-298	129	11	and	and	CCONJ
ajis02-298	129	12	liveness	liveness	NOUN
ajis02-298	129	13	properties	property	NOUN
ajis02-298	129	14	.	.	PUNCT
ajis02-298	130	1	formal	formal	ADJ
ajis02-298	130	2	specification	specification	NOUN
ajis02-298	130	3	we	we	PRON
ajis02-298	130	4	will	will	AUX
ajis02-298	130	5	begin	begin	VERB
ajis02-298	130	6	by	by	ADP
ajis02-298	130	7	formalizing	formalize	VERB
ajis02-298	130	8	some	some	PRON
ajis02-298	130	9	of	of	ADP
ajis02-298	130	10	the	the	DET
ajis02-298	130	11	concepts	concept	NOUN
ajis02-298	130	12	which	which	PRON
ajis02-298	130	13	are	be	AUX
ajis02-298	130	14	related	relate	VERB
ajis02-298	130	15	to	to	ADP
ajis02-298	130	16	switches	switch	NOUN
ajis02-298	130	17	.	.	PUNCT
ajis02-298	131	1	the	the	DET
ajis02-298	131	2	full	full	ADJ
ajis02-298	131	3	pvs	pvs	PROPN
ajis02-298	131	4	specification	specification	NOUN
ajis02-298	131	5	consists	consist	VERB
ajis02-298	131	6	of	of	ADP
ajis02-298	131	7	about	about	ADV
ajis02-298	131	8	1000	1000	NUM
ajis02-298	131	9	lines	line	NOUN
ajis02-298	131	10	,	,	PUNCT
ajis02-298	131	11	including	include	VERB
ajis02-298	131	12	empty	empty	ADJ
ajis02-298	131	13	lines	line	NOUN
ajis02-298	131	14	and	and	CCONJ
ajis02-298	131	15	comments	comment	NOUN
ajis02-298	131	16	.	.	PUNCT
ajis02-298	132	1	for	for	ADP
ajis02-298	132	2	brevity	brevity	NOUN
ajis02-298	132	3	,	,	PUNCT
ajis02-298	132	4	only	only	ADV
ajis02-298	132	5	a	a	DET
ajis02-298	132	6	few	few	ADJ
ajis02-298	132	7	examples	example	NOUN
ajis02-298	132	8	can	can	AUX
ajis02-298	132	9	be	be	AUX
ajis02-298	132	10	given	give	VERB
ajis02-298	132	11	.	.	PUNCT
ajis02-298	133	1	terminology	terminology	NOUN
ajis02-298	133	2	pvs	pvs	PROPN
ajis02-298	133	3	supports	support	VERB
ajis02-298	133	4	identifiers	identifier	NOUN
ajis02-298	133	5	composed	compose	VERB
ajis02-298	133	6	of	of	ADP
ajis02-298	133	7	uppercase	uppercase	ADJ
ajis02-298	133	8	and	and	CCONJ
ajis02-298	133	9	lowercase	lowercase	ADJ
ajis02-298	133	10	letters	letter	NOUN
ajis02-298	133	11	as	as	ADV
ajis02-298	133	12	well	well	ADV
ajis02-298	133	13	as	as	ADP
ajis02-298	133	14	a	a	DET
ajis02-298	133	15	wide	wide	ADJ
ajis02-298	133	16	range	range	NOUN
ajis02-298	133	17	of	of	ADP
ajis02-298	133	18	special	special	ADJ
ajis02-298	133	19	characters	character	NOUN
ajis02-298	133	20	.	.	PUNCT
ajis02-298	134	1	in	in	ADP
ajis02-298	134	2	order	order	NOUN
ajis02-298	134	3	to	to	PART
ajis02-298	134	4	make	make	VERB
ajis02-298	134	5	the	the	DET
ajis02-298	134	6	specification	specification	NOUN
ajis02-298	134	7	more	more	ADV
ajis02-298	134	8	easily	easily	ADV
ajis02-298	134	9	readable	readable	ADJ
ajis02-298	134	10	,	,	PUNCT
ajis02-298	134	11	we	we	PRON
ajis02-298	134	12	have	have	AUX
ajis02-298	134	13	introduced	introduce	VERB
ajis02-298	134	14	a	a	DET
ajis02-298	134	15	few	few	ADJ
ajis02-298	134	16	restrictions	restriction	NOUN
ajis02-298	134	17	.	.	PUNCT
ajis02-298	135	1	names	name	NOUN
ajis02-298	135	2	of	of	ADP
ajis02-298	135	3	types	type	NOUN
ajis02-298	135	4	will	will	AUX
ajis02-298	135	5	be	be	AUX
ajis02-298	135	6	written	write	VERB
ajis02-298	135	7	in	in	ADP
ajis02-298	135	8	uppercase_letl	uppercase_letl	PROPN
ajis02-298	135	9	brs	brs	NOUN
ajis02-298	135	10	,	,	PUNCT
ajis02-298	135	11	functions	function	NOUN
ajis02-298	135	12	and	and	CCONJ
ajis02-298	135	13	constants	constant	NOUN
ajis02-298	135	14	in	in	ADP
ajis02-298	135	15	lowercasejetters	lowercasejetter	NOUN
ajis02-298	135	16	.	.	PUNCT
ajis02-298	136	1	boolean_valued_functions	boolean_valued_function	NOUN
ajis02-298	136	2	?	?	PUNCT
ajis02-298	137	1	have	have	VERB
ajis02-298	137	2	a	a	DET
ajis02-298	137	3	question	question	NOUN
ajis02-298	137	4	mark	mark	NOUN
ajis02-298	137	5	at	at	ADP
ajis02-298	137	6	the	the	DET
ajis02-298	137	7	end	end	NOUN
ajis02-298	137	8	of	of	ADP
ajis02-298	137	9	their	their	PRON
ajis02-298	137	10	name	name	NOUN
ajis02-298	137	11	.	.	PUNCT
ajis02-298	138	1	pvs	pvs	PROPN
ajis02-298	138	2	functions	function	NOUN
ajis02-298	138	3	are	be	AUX
ajis02-298	138	4	total	total	ADJ
ajis02-298	138	5	.	.	PUNCT
ajis02-298	139	1	thus	thus	ADV
ajis02-298	139	2	,	,	PUNCT
ajis02-298	139	3	undefined	undefined	ADJ
ajis02-298	139	4	values	value	NOUN
ajis02-298	139	5	can	can	AUX
ajis02-298	139	6	be	be	AUX
ajis02-298	139	7	handled	handle	VERB
ajis02-298	139	8	by	by	ADP
ajis02-298	139	9	means	mean	NOUN
ajis02-298	139	10	of	of	ADP
ajis02-298	139	11	supertypes	supertype	NOUN
ajis02-298	139	12	and	and	CCONJ
ajis02-298	139	13	subtypes	subtype	NOUN
ajis02-298	139	14	.	.	PUNCT
ajis02-298	140	1	in	in	ADP
ajis02-298	140	2	the	the	DET
ajis02-298	140	3	specification	specification	NOUN
ajis02-298	140	4	,	,	PUNCT
ajis02-298	140	5	there	there	PRON
ajis02-298	140	6	are	be	VERB
ajis02-298	140	7	plenty	plenty	NOUN
ajis02-298	140	8	of	of	ADP
ajis02-298	140	9	type	type	NOUN
ajis02-298	140	10	declaration	declaration	NOUN
ajis02-298	140	11	pairs	pair	NOUN
ajis02-298	140	12	where	where	SCONJ
ajis02-298	140	13	one	one	PRON
ajis02-298	140	14	is	be	AUX
ajis02-298	140	15	a	a	DET
ajis02-298	140	16	subtype	subtype	NOUN
ajis02-298	140	17	of	of	ADP
ajis02-298	140	18	the	the	DET
ajis02-298	140	19	other	other	ADJ
ajis02-298	140	20	.	.	PUNCT
ajis02-298	141	1	in	in	ADP
ajis02-298	141	2	these	these	DET
ajis02-298	141	3	cases	case	NOUN
ajis02-298	141	4	,	,	PUNCT
ajis02-298	141	5	the	the	DET
ajis02-298	141	6	supertype	supertype	NOUN
ajis02-298	141	7	has	have	VERB
ajis02-298	141	8	an	an	DET
ajis02-298	141	9	additional	additional	ADJ
ajis02-298	141	10	question	question	NOUN
ajis02-298	141	11	mark	mark	NOUN
ajis02-298	141	12	at	at	ADP
ajis02-298	141	13	the	the	DET
ajis02-298	141	14	end	end	NOUN
ajis02-298	141	15	,	,	PUNCT
ajis02-298	141	16	as	as	ADP
ajis02-298	141	17	,	,	PUNCT
ajis02-298	141	18	for	for	ADP
ajis02-298	141	19	example	example	NOUN
ajis02-298	141	20	,	,	PUNCT
ajis02-298	141	21	in	in	ADP
ajis02-298	141	22	t_st	t_st	NOUN
ajis02-298	141	23	and	and	CCONJ
ajis02-298	141	24	t_st	t_st	NOUN
ajis02-298	141	25	?	?	PUNCT
ajis02-298	141	26	.	.	PUNCT
ajis02-298	142	1	some	some	PRON
ajis02-298	142	2	more	more	ADJ
ajis02-298	142	3	information	information	NOUN
ajis02-298	142	4	on	on	ADP
ajis02-298	142	5	superand	superand	NOUN
ajis02-298	142	6	subtypes	subtype	NOUN
ajis02-298	142	7	will	will	AUX
ajis02-298	142	8	be	be	AUX
ajis02-298	142	9	given	give	VERB
ajis02-298	142	10	below	below	ADV
ajis02-298	142	11	.	.	PUNCT
ajis02-298	143	1	a	a	DET
ajis02-298	143	2	glimpse	glimpse	NOUN
ajis02-298	143	3	on	on	ADP
ajis02-298	143	4	the	the	DET
ajis02-298	143	5	specification	specification	NOUN
ajis02-298	143	6	a	a	DET
ajis02-298	143	7	target	target	NOUN
ajis02-298	143	8	is	be	AUX
ajis02-298	143	9	a	a	DET
ajis02-298	143	10	physical	physical	ADJ
ajis02-298	143	11	device	device	NOUN
ajis02-298	143	12	which	which	PRON
ajis02-298	143	13	can	can	AUX
ajis02-298	143	14	be	be	AUX
ajis02-298	143	15	in	in	ADP
ajis02-298	143	16	one	one	NUM
ajis02-298	143	17	of	of	ADP
ajis02-298	143	18	the	the	DET
ajis02-298	143	19	two	two	NUM
ajis02-298	143	20	states	state	NOUN
ajis02-298	143	21	blocked	block	VERB
ajis02-298	143	22	and	and	CCONJ
ajis02-298	143	23	nonblocked	nonblocke	VERB
ajis02-298	143	24	.	.	PUNCT
ajis02-298	144	1	in	in	ADP
ajis02-298	144	2	state	state	NOUN
ajis02-298	144	3	blocked	block	VERB
ajis02-298	144	4	,	,	PUNCT
ajis02-298	144	5	the	the	DET
ajis02-298	144	6	target	target	NOUN
ajis02-298	144	7	is	be	AUX
ajis02-298	144	8	impassable	impassable	ADJ
ajis02-298	144	9	for	for	ADP
ajis02-298	144	10	the	the	DET
ajis02-298	144	11	guard	guard	NOUN
ajis02-298	144	12	.	.	PUNCT
ajis02-298	145	1	examples	example	NOUN
ajis02-298	145	2	for	for	ADP
ajis02-298	145	3	targets	target	NOUN
ajis02-298	145	4	are	be	AUX
ajis02-298	145	5	light	light	ADJ
ajis02-298	145	6	switches	switch	NOUN
ajis02-298	145	7	,	,	PUNCT
ajis02-298	145	8	doors	door	NOUN
ajis02-298	145	9	,	,	PUNCT
ajis02-298	145	10	and	and	CCONJ
ajis02-298	145	11	intrusion	intrusion	NOUN
ajis02-298	145	12	circuits	circuit	NOUN
ajis02-298	145	13	.	.	PUNCT
ajis02-298	146	1	target	target	NOUN
ajis02-298	146	2	identifier	identifier	NOUN
ajis02-298	146	3	.	.	PUNCT
ajis02-298	147	1	t_id	t_id	PROPN
ajis02-298	147	2	?	?	PUNCT
ajis02-298	147	3	and	and	CCONJ
ajis02-298	147	4	t_id	t_id	PROPN
ajis02-298	147	5	are	be	AUX
ajis02-298	147	6	datatypes	datatype	NOUN
ajis02-298	147	7	.	.	PUNCT
ajis02-298	148	1	they	they	PRON
ajis02-298	148	2	both	both	PRON
ajis02-298	148	3	contain	contain	VERB
ajis02-298	148	4	all	all	PRON
ajis02-298	148	5	physically	physically	ADV
ajis02-298	148	6	existing	exist	VERB
ajis02-298	148	7	(	(	PUNCT
ajis02-298	148	8	,	,	PUNCT
ajis02-298	148	9	,	,	PUNCT
ajis02-298	148	10	valid	valid	ADJ
ajis02-298	148	11	"	"	PUNCT
ajis02-298	148	12	)	)	PUNCT
ajis02-298	148	13	target	target	VERB
ajis02-298	148	14	i	i	PROPN
ajis02-298	148	15	d	d	PROPN
ajis02-298	148	16	's	's	PART
ajis02-298	148	17	.	.	PUNCT
ajis02-298	149	1	in	in	ADP
ajis02-298	149	2	t_id	t_id	PROPN
ajis02-298	149	3	?	?	PUNCT
ajis02-298	150	1	there	there	PRON
ajis02-298	150	2	is	be	VERB
ajis02-298	150	3	an	an	DET
ajis02-298	150	4	extra	extra	ADJ
ajis02-298	150	5	value	value	NOUN
ajis02-298	150	6	called	call	VERB
ajis02-298	150	7	null_tid	null_tid	NUM
ajis02-298	150	8	.	.	PUNCT
ajis02-298	150	9	predicate	predicate	NOUN
ajis02-298	150	10	t_id_notnull	t_id_notnull	NOUN
ajis02-298	150	11	?	?	PUNCT
ajis02-298	151	1	holds	hold	VERB
ajis02-298	151	2	for	for	ADP
ajis02-298	151	3	all	all	DET
ajis02-298	151	4	valid	valid	ADJ
ajis02-298	151	5	targets	target	NOUN
ajis02-298	151	6	.	.	PUNCT
ajis02-298	152	1	as	as	SCONJ
ajis02-298	152	2	pointed	point	VERB
ajis02-298	152	3	out	out	ADP
ajis02-298	152	4	above	above	ADV
ajis02-298	152	5	,	,	PUNCT
ajis02-298	152	6	t_id	t_id	PROPN
ajis02-298	152	7	is	be	AUX
ajis02-298	152	8	a	a	DET
ajis02-298	152	9	subtype	subtype	NOUN
ajis02-298	152	10	of	of	ADP
ajis02-298	152	11	t_id	t_id	PROPN
ajis02-298	152	12	?	?	PUNCT
ajis02-298	152	13	.	.	PUNCT
ajis02-298	153	1	note	note	VERB
ajis02-298	153	2	the	the	DET
ajis02-298	153	3	"	"	PUNCT
ajis02-298	153	4	+	+	NOUN
ajis02-298	153	5	"	"	PUNCT
ajis02-298	153	6	in	in	ADP
ajis02-298	153	7	the	the	DET
ajis02-298	153	8	declaration	declaration	NOUN
ajis02-298	153	9	of	of	ADP
ajis02-298	153	10	t_id	t_id	PROPN
ajis02-298	153	11	?	?	PUNCT
ajis02-298	153	12	which	which	PRON
ajis02-298	153	13	makes	make	VERB
ajis02-298	153	14	sure	sure	ADJ
ajis02-298	153	15	that	that	SCONJ
ajis02-298	153	16	the	the	DET
ajis02-298	153	17	type	type	NOUN
ajis02-298	153	18	is	be	AUX
ajis02-298	153	19	non	non	ADJ
ajis02-298	153	20	-	-	ADJ
ajis02-298	153	21	empty	empty	ADJ
ajis02-298	153	22	.	.	PUNCT
ajis02-298	154	1	t_id	t_id	PROPN
ajis02-298	154	2	?	?	PUNCT
ajis02-298	155	1	:	:	PUNCT
ajis02-298	155	2	type+	type+	X
ajis02-298	155	3	nuluid	nuluid	ADJ
ajis02-298	155	4	:	:	PUNCT
ajis02-298	156	1	t_id	t_id	PROPN
ajis02-298	156	2	?	?	PUNCT
ajis02-298	156	3	t_id_notnull	t_id_notnull	PROPN
ajis02-298	156	4	?	?	PUNCT
ajis02-298	157	1	(	(	PUNCT
ajis02-298	157	2	t	t	X
ajis02-298	157	3	i	i	PRON
ajis02-298	157	4	d	d	PROPN
ajis02-298	157	5	:	:	PUNCT
ajis02-298	157	6	t_id	t_id	PROPN
ajis02-298	157	7	?	?	PUNCT
ajis02-298	157	8	)	)	PUNCT
ajis02-298	157	9	:	:	PUNCT
ajis02-298	158	1	bool	bool	NOUN
ajis02-298	158	2	=	=	PUNCT
ajis02-298	158	3	tid	tid	NOUN
ajis02-298	158	4	/=	/=	NOUN
ajis02-298	158	5	null.tid	null.tid	X
ajis02-298	158	6	t_id	t_id	PROPN
ajis02-298	158	7	:	:	PUNCT
ajis02-298	158	8	type	type	NOUN
ajis02-298	158	9	=	=	SYM
ajis02-298	158	10	(	(	PUNCT
ajis02-298	158	11	t_id_notnull	t_id_notnull	NOUN
ajis02-298	158	12	?	?	PUNCT
ajis02-298	158	13	)	)	PUNCT
ajis02-298	158	14	target	target	NOUN
ajis02-298	158	15	state	state	NOUN
ajis02-298	158	16	.	.	PUNCT
ajis02-298	159	1	t_st	t_st	PROPN
ajis02-298	159	2	indicates	indicate	VERB
ajis02-298	159	3	the	the	DET
ajis02-298	159	4	present	present	ADJ
ajis02-298	159	5	state	state	NOUN
ajis02-298	159	6	of	of	ADP
ajis02-298	159	7	the	the	DET
ajis02-298	159	8	target	target	NOUN
ajis02-298	159	9	:	:	PUNCT
ajis02-298	159	10	blocked	block	VERB
ajis02-298	159	11	or	or	CCONJ
ajis02-298	159	12	nonblocked	nonblocked	ADJ
ajis02-298	159	13	.	.	PUNCT
ajis02-298	160	1	t_st	t_st	PROPN
ajis02-298	160	2	contains	contain	VERB
ajis02-298	160	3	all	all	DET
ajis02-298	160	4	values	value	NOUN
ajis02-298	160	5	of	of	ADP
ajis02-298	160	6	t_st	t_st	NOUN
ajis02-298	160	7	?	?	PUNCT
ajis02-298	161	1	but	but	CCONJ
ajis02-298	162	1	t_st_null	t_st_null	NOUN
ajis02-298	162	2	.	.	PUNCT
ajis02-298	163	1	again	again	ADV
ajis02-298	163	2	,	,	PUNCT
ajis02-298	163	3	t_st	t_st	PROPN
ajis02-298	163	4	is	be	AUX
ajis02-298	163	5	a	a	DET
ajis02-298	163	6	subtype	subtype	NOUN
ajis02-298	163	7	of	of	ADP
ajis02-298	163	8	t_st	t_st	NOUN
ajis02-298	163	9	?	?	PUNCT
ajis02-298	163	10	.	.	PUNCT
ajis02-298	164	1	t_st	t_st	PROPN
ajis02-298	164	2	?	?	PUNCT
ajis02-298	165	1	:	:	PUNCT
ajis02-298	165	2	type	type	NOUN
ajis02-298	165	3	=	=	NOUN
ajis02-298	165	4	{	{	PUNCT
ajis02-298	165	5	nonblocked	nonblocked	ADJ
ajis02-298	165	6	,	,	PUNCT
ajis02-298	165	7	blocked	block	VERB
ajis02-298	165	8	,	,	PUNCT
ajis02-298	165	9	t_st_null	t_st_null	NOUN
ajis02-298	165	10	}	}	PUNCT
ajis02-298	165	11	t_st_notnull	t_st_notnull	NOUN
ajis02-298	165	12	?	?	PUNCT
ajis02-298	166	1	(	(	PUNCT
ajis02-298	166	2	t	t	PROPN
ajis02-298	166	3	s	s	PROPN
ajis02-298	166	4	t	t	NOUN
ajis02-298	166	5	:	:	PUNCT
ajis02-298	166	6	t_st	t_st	PROPN
ajis02-298	166	7	?	?	PUNCT
ajis02-298	166	8	):	):	PUNCT
ajis02-298	166	9	bool	bool	NOUN
ajis02-298	166	10	=	=	PUNCT
ajis02-298	166	11	1st	1st	NOUN
ajis02-298	166	12	/=	/=	PUNCT
ajis02-298	167	1	t.st.null	t.st.null	PROPN
ajis02-298	167	2	t_st	t_st	PROPN
ajis02-298	167	3	:	:	PUNCT
ajis02-298	167	4	type	type	NOUN
ajis02-298	167	5	=	=	SYM
ajis02-298	167	6	(	(	PUNCT
ajis02-298	167	7	t_st_notnull	t_st_notnull	NOUN
ajis02-298	167	8	?	?	PUNCT
ajis02-298	167	9	)	)	PUNCT
ajis02-298	167	10	round	round	ADJ
ajis02-298	167	11	identifier	identifier	NOUN
ajis02-298	167	12	.	.	PUNCT
ajis02-298	168	1	essentially	essentially	ADV
ajis02-298	168	2	,	,	PUNCT
ajis02-298	168	3	a	a	DET
ajis02-298	168	4	round	round	NOUN
ajis02-298	168	5	consists	consist	VERB
ajis02-298	168	6	of	of	ADP
ajis02-298	168	7	a	a	DET
ajis02-298	168	8	list	list	NOUN
ajis02-298	168	9	of	of	ADP
ajis02-298	168	10	stations	station	NOUN
ajis02-298	168	11	.	.	PUNCT
ajis02-298	169	1	stations	station	NOUN
ajis02-298	169	2	are	be	AUX
ajis02-298	169	3	devices	device	NOUN
ajis02-298	169	4	which	which	PRON
ajis02-298	169	5	are	be	AUX
ajis02-298	169	6	visited	visit	VERB
ajis02-298	169	7	and	and	CCONJ
ajis02-298	169	8	hit	hit	VERB
ajis02-298	169	9	by	by	ADP
ajis02-298	169	10	the	the	DET
ajis02-298	169	11	guard	guard	NOUN
ajis02-298	169	12	on	on	ADP
ajis02-298	169	13	his	his	PRON
ajis02-298	169	14	or	or	CCONJ
ajis02-298	169	15	her	her	PRON
ajis02-298	169	16	way	way	NOUN
ajis02-298	169	17	through	through	ADP
ajis02-298	169	18	the	the	DET
ajis02-298	169	19	site	site	NOUN
ajis02-298	169	20	.	.	PUNCT
ajis02-298	170	1	examples	example	NOUN
ajis02-298	170	2	for	for	ADP
ajis02-298	170	3	stations	station	NOUN
ajis02-298	170	4	are	be	AUX
ajis02-298	170	5	card	card	NOUN
ajis02-298	170	6	readers	reader	NOUN
ajis02-298	170	7	,	,	PUNCT
ajis02-298	170	8	terminals	terminal	NOUN
ajis02-298	170	9	,	,	PUNCT
ajis02-298	170	10	or	or	CCONJ
ajis02-298	170	11	ordinary	ordinary	ADJ
ajis02-298	170	12	push	push	NOUN
ajis02-298	170	13	buttons	button	NOUN
ajis02-298	170	14	.	.	PUNCT
ajis02-298	171	1	similar	similar	ADJ
ajis02-298	171	2	to	to	ADP
ajis02-298	171	3	the	the	DET
ajis02-298	171	4	target	target	NOUN
ajis02-298	171	5	i	i	PROPN
ajis02-298	171	6	d	d	PROPN
ajis02-298	171	7	,	,	PUNCT
ajis02-298	171	8	each	each	DET
ajis02-298	171	9	round	round	NOUN
ajis02-298	171	10	has	have	VERB
ajis02-298	171	11	a	a	DET
ajis02-298	171	12	unique	unique	ADJ
ajis02-298	171	13	identifier	identifier	NOUN
ajis02-298	171	14	of	of	ADP
ajis02-298	171	15	type	type	NOUN
ajis02-298	171	16	r_id	r_id	PROPN
ajis02-298	171	17	.	.	PUNCT
ajis02-298	172	1	r_id	r_id	PROPN
ajis02-298	172	2	?	?	PUNCT
ajis02-298	173	1	:	:	PUNCT
ajis02-298	173	2	type+	type+	ADV
ajis02-298	173	3	null_rid	null_rid	NUM
ajis02-298	173	4	:	:	PUNCT
ajis02-298	173	5	r_id	r_id	VERB
ajis02-298	173	6	?	?	PUNCT
ajis02-298	174	1	r_id_notnull	r_id_notnull	NOUN
ajis02-298	174	2	?	?	PUNCT
ajis02-298	175	1	(	(	PUNCT
ajis02-298	175	2	rid	rid	VERB
ajis02-298	175	3	:	:	PUNCT
ajis02-298	175	4	r_id	r_id	PROPN
ajis02-298	175	5	?	?	PUNCT
ajis02-298	175	6	)	)	PUNCT
ajis02-298	175	7	:	:	PUNCT
ajis02-298	176	1	bool	bool	NOUN
ajis02-298	176	2	=	=	PUNCT
ajis02-298	176	3	rid	rid	VERB
ajis02-298	176	4	/=	/=	PROPN
ajis02-298	177	1	null_rid	null_rid	VERB
ajis02-298	177	2	r_id	r_id	PROPN
ajis02-298	177	3	:	:	PUNCT
ajis02-298	177	4	type	type	NOUN
ajis02-298	177	5	=	=	SYM
ajis02-298	177	6	(	(	PUNCT
ajis02-298	177	7	r_id_notnull	r_id_notnull	NOUN
ajis02-298	177	8	?	?	PUNCT
ajis02-298	177	9	)	)	PUNCT
ajis02-298	177	10	target	target	NOUN
ajis02-298	177	11	in	in	ADP
ajis02-298	177	12	the	the	DET
ajis02-298	177	13	pvs	pvs	PROPN
ajis02-298	177	14	specification	specification	NOUN
ajis02-298	177	15	,	,	PUNCT
ajis02-298	177	16	a	a	DET
ajis02-298	177	17	target	target	NOUN
ajis02-298	177	18	is	be	AUX
ajis02-298	177	19	modeled	model	VERB
ajis02-298	177	20	by	by	ADP
ajis02-298	177	21	its	its	PRON
ajis02-298	177	22	state	state	NOUN
ajis02-298	177	23	and	and	CCONJ
ajis02-298	177	24	a	a	DET
ajis02-298	177	25	reference	reference	NOUN
ajis02-298	177	26	to	to	ADP
ajis02-298	177	27	the	the	DET
ajis02-298	177	28	round	round	NOUN
ajis02-298	177	29	that	that	PRON
ajis02-298	177	30	has	have	AUX
ajis02-298	177	31	last	last	ADV
ajis02-298	177	32	modified	modify	VERB
ajis02-298	177	33	that	that	DET
ajis02-298	177	34	state	state	NOUN
ajis02-298	177	35	.	.	PUNCT
ajis02-298	178	1	each	each	PRON
ajis02-298	178	2	of	of	ADP
ajis02-298	178	3	these	these	DET
ajis02-298	178	4	fields	field	NOUN
ajis02-298	178	5	may	may	AUX
ajis02-298	178	6	hold	hold	VERB
ajis02-298	178	7	null	null	ADJ
ajis02-298	178	8	values	value	NOUN
ajis02-298	178	9	:	:	PUNCT
ajis02-298	178	10	first	first	ADV
ajis02-298	178	11	,	,	PUNCT
ajis02-298	178	12	if	if	SCONJ
ajis02-298	178	13	tjastmod	tjastmod	VERB
ajis02-298	178	14	?	?	PROPN
ajis02-298	178	15	is	be	AUX
ajis02-298	178	16	undefined	undefined	ADJ
ajis02-298	178	17	,	,	PUNCT
ajis02-298	178	18	then	then	ADV
ajis02-298	178	19	the	the	DET
ajis02-298	178	20	model	model	NOUN
ajis02-298	178	21	is	be	AUX
ajis02-298	178	22	unaware	unaware	ADJ
ajis02-298	178	23	of	of	ADP
ajis02-298	178	24	a	a	DET
ajis02-298	178	25	previous	previous	ADJ
ajis02-298	178	26	state	state	NOUN
ajis02-298	178	27	change	change	NOUN
ajis02-298	178	28	.	.	PUNCT
ajis02-298	179	1	however	however	ADV
ajis02-298	179	2	,	,	PUNCT
ajis02-298	179	3	in	in	ADP
ajis02-298	179	4	such	such	DET
ajis02-298	179	5	a	a	DET
ajis02-298	179	6	case	case	NOUN
ajis02-298	179	7	the	the	DET
ajis02-298	179	8	target	target	NOUN
ajis02-298	179	9	may	may	AUX
ajis02-298	179	10	be	be	AUX
ajis02-298	179	11	either	either	ADV
ajis02-298	179	12	blocked	block	VERB
ajis02-298	179	13	or	or	CCONJ
ajis02-298	179	14	nonblocked	nonblocked	ADJ
ajis02-298	179	15	.	.	PUNCT
ajis02-298	180	1	second	second	ADJ
ajis02-298	180	2	,	,	PUNCT
ajis02-298	180	3	a	a	DET
ajis02-298	180	4	null	null	ADJ
ajis02-298	180	5	value	value	NOUN
ajis02-298	180	6	of	of	ADP
ajis02-298	180	7	the	the	DET
ajis02-298	180	8	state	state	NOUN
ajis02-298	180	9	is	be	AUX
ajis02-298	180	10	used	use	VERB
ajis02-298	180	11	to	to	PART
ajis02-298	180	12	indicate	indicate	VERB
ajis02-298	180	13	that	that	SCONJ
ajis02-298	180	14	it	it	PRON
ajis02-298	180	15	is	be	AUX
ajis02-298	180	16	a	a	DET
ajis02-298	180	17	non	non	ADJ
ajis02-298	180	18	-	-	ADJ
ajis02-298	180	19	existing	existing	ADJ
ajis02-298	180	20	target	target	NOUN
ajis02-298	180	21	null_t	null_t	NOUN
ajis02-298	180	22	.	.	PUNCT
ajis02-298	181	1	150	150	NUM
ajis02-298	181	2	t	t	NOUN
ajis02-298	181	3	?	?	PUNCT
ajis02-298	181	4	:	:	PUNCT
ajis02-298	181	5	type=	type=	NUM
ajis02-298	182	1	[	[	X
ajis02-298	182	2	#	#	NOUN
ajis02-298	182	3	t_state	t_state	NOUN
ajis02-298	182	4	?	?	PUNCT
ajis02-298	183	1	:	:	PUNCT
ajis02-298	183	2	t_st	t_st	NOUN
ajis02-298	183	3	?	?	PUNCT
ajis02-298	183	4	,	,	PUNCT
ajis02-298	183	5	llastmod	llastmod	ADJ
ajis02-298	183	6	?	?	PUNCT
ajis02-298	183	7	:	:	PUNCT
ajis02-298	184	1	r_id	r_id	X
ajis02-298	184	2	?	?	PUNCT
ajis02-298	185	1	#	#	NOUN
ajis02-298	185	2	]	]	X
ajis02-298	185	3	t_notnull	t_notnull	NUM
ajis02-298	185	4	?	?	PUNCT
ajis02-298	186	1	(	(	PUNCT
ajis02-298	186	2	t	t	X
ajis02-298	186	3	:	:	PUNCT
ajis02-298	186	4	t	t	PROPN
ajis02-298	186	5	?	?	PUNCT
ajis02-298	186	6	):	):	PUNCT
ajis02-298	186	7	bool	bool	NOUN
ajis02-298	186	8	=	=	SYM
ajis02-298	186	9	t_st_notnull?(t_state?(t	t_st_notnull?(t_state?(t	NOUN
ajis02-298	186	10	)	)	PUNCT
ajis02-298	186	11	)	)	PUNCT
ajis02-298	187	1	t	t	NOUN
ajis02-298	187	2	:	:	PUNCT
ajis02-298	187	3	type	type	NOUN
ajis02-298	187	4	=	=	SYM
ajis02-298	187	5	(	(	PUNCT
ajis02-298	187	6	lnotnull	lnotnull	NOUN
ajis02-298	187	7	?	?	PUNCT
ajis02-298	187	8	)	)	PUNCT
ajis02-298	187	9	null_t	null_t	NOUN
ajis02-298	187	10	:	:	PUNCT
ajis02-298	187	11	t	t	X
ajis02-298	187	12	?	?	PUNCT
ajis02-298	187	13	=	=	PRON
ajis02-298	188	1	(	(	PUNCT
ajis02-298	188	2	#	#	NOUN
ajis02-298	188	3	t_state?:=t_st_null	t_state?:=t_st_null	NOUN
ajis02-298	188	4	,	,	PUNCT
ajis02-298	188	5	t_lastmod?:=null_rid	t_lastmod?:=null_rid	X
ajis02-298	188	6	#	#	NOUN
ajis02-298	188	7	)	)	PUNCT
ajis02-298	188	8	t_st_mod_yet	t_st_mod_yet	ADV
ajis02-298	188	9	?	?	PUNCT
ajis02-298	189	1	(	(	PUNCT
ajis02-298	189	2	t	t	X
ajis02-298	189	3	:	:	PUNCT
ajis02-298	189	4	t	t	PROPN
ajis02-298	189	5	)	)	PUNCT
ajis02-298	189	6	:	:	PUNCT
ajis02-298	189	7	bool	bool	NOUN
ajis02-298	189	8	=	=	SYM
ajis02-298	189	9	r_id_notnull?(t_lastmod?(t	r_id_notnull?(t_lastmod?(t	PROPN
ajis02-298	189	10	)	)	PUNCT
ajis02-298	189	11	)	)	PUNCT
ajis02-298	189	12	target	target	NOUN
ajis02-298	189	13	database	database	NOUN
ajis02-298	189	14	.	.	PUNCT
ajis02-298	190	1	the	the	DET
ajis02-298	190	2	collection	collection	NOUN
ajis02-298	190	3	of	of	ADP
ajis02-298	190	4	known	know	VERB
ajis02-298	190	5	targets	target	NOUN
ajis02-298	190	6	is	be	AUX
ajis02-298	190	7	modeled	model	VERB
ajis02-298	190	8	as	as	ADP
ajis02-298	190	9	a	a	DET
ajis02-298	190	10	mapping	mapping	NOUN
ajis02-298	190	11	from	from	ADP
ajis02-298	190	12	target	target	PROPN
ajis02-298	190	13	i	i	PROPN
ajis02-298	190	14	d	d	PROPN
ajis02-298	190	15	's	'	NOUN
ajis02-298	190	16	to	to	ADP
ajis02-298	190	17	targets	target	NOUN
ajis02-298	190	18	.	.	PUNCT
ajis02-298	191	1	t	t	X
ajis02-298	191	2	?	?	PUNCT
ajis02-298	191	3	is	be	AUX
ajis02-298	191	4	used	use	VERB
ajis02-298	191	5	as	as	ADP
ajis02-298	191	6	the	the	DET
ajis02-298	191	7	domain	domain	NOUN
ajis02-298	191	8	of	of	ADP
ajis02-298	191	9	this	this	DET
ajis02-298	191	10	mapping	mapping	NOUN
ajis02-298	191	11	.	.	PUNCT
ajis02-298	192	1	since	since	SCONJ
ajis02-298	192	2	in	in	ADP
ajis02-298	192	3	pvs	pvs	PROPN
ajis02-298	192	4	mappings	mapping	NOUN
ajis02-298	192	5	(	(	PUNCT
ajis02-298	192	6	they	they	PRON
ajis02-298	192	7	are	be	AUX
ajis02-298	192	8	functions	function	NOUN
ajis02-298	192	9	)	)	PUNCT
ajis02-298	192	10	are	be	AUX
ajis02-298	192	11	total	total	ADJ
ajis02-298	192	12	,	,	PUNCT
ajis02-298	192	13	some	some	DET
ajis02-298	192	14	i	i	PROPN
ajis02-298	192	15	d	d	PROPN
ajis02-298	192	16	's	's	PART
ajis02-298	192	17	may	may	AUX
ajis02-298	192	18	map	map	VERB
ajis02-298	192	19	to	to	ADP
ajis02-298	192	20	a	a	DET
ajis02-298	192	21	null	null	ADJ
ajis02-298	192	22	target	target	NOUN
ajis02-298	192	23	.	.	PUNCT
ajis02-298	193	1	it	it	PRON
ajis02-298	193	2	should	should	AUX
ajis02-298	193	3	now	now	ADV
ajis02-298	193	4	become	become	VERB
ajis02-298	193	5	clear	clear	ADJ
ajis02-298	193	6	why	why	SCONJ
ajis02-298	193	7	there	there	PRON
ajis02-298	193	8	has	have	VERB
ajis02-298	193	9	to	to	PART
ajis02-298	193	10	be	be	AUX
ajis02-298	193	11	a	a	DET
ajis02-298	193	12	null	null	ADJ
ajis02-298	193	13	value	value	NOUN
ajis02-298	193	14	for	for	ADP
ajis02-298	193	15	the	the	DET
ajis02-298	193	16	target	target	NOUN
ajis02-298	193	17	type	type	NOUN
ajis02-298	193	18	t	t	PROPN
ajis02-298	193	19	?	?	PUNCT
ajis02-298	193	20	.	.	PUNCT
ajis02-298	194	1	t_db	t_db	NOUN
ajis02-298	194	2	:	:	PUNCT
ajis02-298	194	3	type	type	NOUN
ajis02-298	194	4	=	=	PUNCT
ajis02-298	194	5	[	[	PUNCT
ajis02-298	194	6	t_id	t_id	PROPN
ajis02-298	194	7	-	-	PUNCT
ajis02-298	194	8	>	>	X
ajis02-298	194	9	t	t	PROPN
ajis02-298	194	10	?	?	PUNCT
ajis02-298	194	11	]	]	PUNCT
ajis02-298	194	12	system	system	NOUN
ajis02-298	194	13	state	state	NOUN
ajis02-298	194	14	.	.	PUNCT
ajis02-298	195	1	according	accord	VERB
ajis02-298	195	2	to	to	ADP
ajis02-298	195	3	the	the	DET
ajis02-298	195	4	pvs	pvs	PROPN
ajis02-298	195	5	model	model	NOUN
ajis02-298	195	6	,	,	PUNCT
ajis02-298	195	7	the	the	DET
ajis02-298	195	8	system	system	NOUN
ajis02-298	195	9	state	state	NOUN
ajis02-298	195	10	consists	consist	VERB
ajis02-298	195	11	of	of	ADP
ajis02-298	195	12	the	the	DET
ajis02-298	195	13	target	target	NOUN
ajis02-298	195	14	database	database	NOUN
ajis02-298	195	15	defined	define	VERB
ajis02-298	195	16	above	above	ADV
ajis02-298	195	17	,	,	PUNCT
ajis02-298	195	18	and	and	CCONJ
ajis02-298	195	19	a	a	DET
ajis02-298	195	20	round	round	ADJ
ajis02-298	195	21	database	database	NOUN
ajis02-298	195	22	which	which	PRON
ajis02-298	195	23	is	be	AUX
ajis02-298	195	24	specified	specify	VERB
ajis02-298	195	25	elsewhere	elsewhere	ADV
ajis02-298	195	26	using	use	VERB
ajis02-298	195	27	the	the	DET
ajis02-298	195	28	same	same	ADJ
ajis02-298	195	29	principles	principle	NOUN
ajis02-298	195	30	.	.	PUNCT
ajis02-298	196	1	sys_st	sys_st	NOUN
ajis02-298	196	2	:	:	PUNCT
ajis02-298	196	3	type	type	NOUN
ajis02-298	196	4	=[	=[	NOUN
ajis02-298	196	5	#	#	NOUN
ajis02-298	196	6	rdb	rdb	NOUN
ajis02-298	196	7	:	:	PUNCT
ajis02-298	196	8	r_db	r_db	PROPN
ajis02-298	196	9	,	,	PUNCT
ajis02-298	196	10	tdb	tdb	PROPN
ajis02-298	196	11	:	:	PUNCT
ajis02-298	196	12	t_db	t_db	PROPN
ajis02-298	196	13	#	#	SYM
ajis02-298	196	14	]	]	PUNCT
ajis02-298	196	15	event	event	NOUN
ajis02-298	196	16	.	.	PUNCT
ajis02-298	197	1	an	an	DET
ajis02-298	197	2	event	event	NOUN
ajis02-298	197	3	of	of	ADP
ajis02-298	197	4	type	type	NOUN
ajis02-298	197	5	ev	ev	PROPN
ajis02-298	197	6	is	be	AUX
ajis02-298	197	7	a	a	DET
ajis02-298	197	8	subtype	subtype	NOUN
ajis02-298	197	9	of	of	ADP
ajis02-298	197	10	uu_ev	uu_ev	PROPN
ajis02-298	197	11	.	.	PUNCT
ajis02-298	198	1	essentially	essentially	ADV
ajis02-298	198	2	,	,	PUNCT
ajis02-298	198	3	it	it	PRON
ajis02-298	198	4	models	model	VERB
ajis02-298	198	5	the	the	DET
ajis02-298	198	6	transition	transition	NOUN
ajis02-298	198	7	from	from	ADP
ajis02-298	198	8	one	one	NUM
ajis02-298	198	9	system	system	NOUN
ajis02-298	198	10	state	state	NOUN
ajis02-298	198	11	to	to	ADP
ajis02-298	198	12	another	another	PRON
ajis02-298	198	13	,	,	PUNCT
ajis02-298	198	14	triggered	trigger	VERB
ajis02-298	198	15	by	by	ADP
ajis02-298	198	16	some	some	DET
ajis02-298	198	17	switch	switch	NOUN
ajis02-298	198	18	.	.	PUNCT
ajis02-298	199	1	uu_ev	uu_ev	ADJ
ajis02-298	199	2	:	:	PUNCT
ajis02-298	199	3	type	type	NOUN
ajis02-298	200	1	=	=	PUNCT
ajis02-298	201	1	[	[	X
ajis02-298	201	2	#	#	NOUN
ajis02-298	201	3	sys.before	sys.before	ADV
ajis02-298	201	4	:	:	PUNCT
ajis02-298	201	5	sys_st	sys_st	PROPN
ajis02-298	201	6	,	,	PUNCT
ajis02-298	201	7	trig	trig	PROPN
ajis02-298	201	8	:	:	PUNCT
ajis02-298	201	9	tr	tr	VERB
ajis02-298	201	10	,	,	PUNCT
ajis02-298	201	11	sys_after	sys_after	NOUN
ajis02-298	201	12	:	:	PUNCT
ajis02-298	201	13	sys_st	sys_st	NOUN
ajis02-298	202	1	#	#	SYM
ajis02-298	202	2	]	]	X
ajis02-298	202	3	scenario	scenario	NOUN
ajis02-298	202	4	.	.	PUNCT
ajis02-298	203	1	a	a	DET
ajis02-298	203	2	scenario	scenario	NOUN
ajis02-298	203	3	of	of	ADP
ajis02-298	203	4	type	type	NOUN
ajis02-298	203	5	scenario	scenario	NOUN
ajis02-298	203	6	is	be	AUX
ajis02-298	203	7	a	a	DET
ajis02-298	203	8	subtype	subtype	NOUN
ajis02-298	203	9	of	of	ADP
ajis02-298	203	10	u_scenario	u_scenario	PROPN
ajis02-298	203	11	.	.	PUNCT
ajis02-298	204	1	a	a	DET
ajis02-298	204	2	scenario	scenario	NOUN
ajis02-298	204	3	is	be	AUX
ajis02-298	204	4	the	the	DET
ajis02-298	204	5	set	set	NOUN
ajis02-298	204	6	of	of	ADP
ajis02-298	204	7	all	all	DET
ajis02-298	204	8	possible	possible	ADJ
ajis02-298	204	9	sequences	sequence	NOUN
ajis02-298	204	10	of	of	ADP
ajis02-298	204	11	events	event	NOUN
ajis02-298	204	12	.	.	PUNCT
ajis02-298	205	1	according	accord	VERB
ajis02-298	205	2	to	to	ADP
ajis02-298	205	3	the	the	DET
ajis02-298	205	4	pvs	pvs	PROPN
ajis02-298	205	5	model	model	NOUN
ajis02-298	205	6	,	,	PUNCT
ajis02-298	205	7	these	these	PRON
ajis02-298	205	8	are	be	AUX
ajis02-298	205	9	defined	define	VERB
ajis02-298	205	10	by	by	ADP
ajis02-298	205	11	means	mean	NOUN
ajis02-298	205	12	of	of	ADP
ajis02-298	205	13	axioms	axiom	NOUN
ajis02-298	205	14	.	.	PUNCT
ajis02-298	206	1	this	this	PRON
ajis02-298	206	2	is	be	AUX
ajis02-298	206	3	in	in	ADP
ajis02-298	206	4	contrast	contrast	NOUN
ajis02-298	206	5	to	to	ADP
ajis02-298	206	6	(	(	PUNCT
ajis02-298	206	7	droschl	droschl	NOUN
ajis02-298	206	8	,	,	PUNCT
ajis02-298	206	9	1999b	1999b	NUM
ajis02-298	206	10	)	)	PUNCT
ajis02-298	206	11	and	and	CCONJ
ajis02-298	206	12	(	(	PUNCT
ajis02-298	206	13	droschl	droschl	NOUN
ajis02-298	206	14	,	,	PUNCT
ajis02-298	206	15	1999c	1999c	NUM
ajis02-298	206	16	)	)	PUNCT
ajis02-298	206	17	,	,	PUNCT
ajis02-298	206	18	where	where	SCONJ
ajis02-298	206	19	ssd	ssd	PROPN
ajis02-298	206	20	's	's	PART
ajis02-298	206	21	scenario	scenario	NOUN
ajis02-298	206	22	is	be	AUX
ajis02-298	206	23	essentially	essentially	ADV
ajis02-298	206	24	defined	define	VERB
ajis02-298	206	25	as	as	ADP
ajis02-298	206	26	a	a	DET
ajis02-298	206	27	relation	relation	NOUN
ajis02-298	206	28	between	between	ADP
ajis02-298	206	29	all	all	DET
ajis02-298	206	30	pairs	pair	NOUN
ajis02-298	206	31	of	of	ADP
ajis02-298	206	32	events	event	NOUN
ajis02-298	206	33	.	.	PUNCT
ajis02-298	207	1	u_scenario	u_scenario	NOUN
ajis02-298	207	2	:	:	PUNCT
ajis02-298	207	3	type	type	NOUN
ajis02-298	207	4	=	=	SYM
ajis02-298	208	1	list[ev	list[ev	PROPN
ajis02-298	208	2	]	]	PUNCT
ajis02-298	208	3	formal	formal	ADJ
ajis02-298	208	4	proof	proof	NOUN
ajis02-298	208	5	of	of	ADP
ajis02-298	208	6	requirements	requirement	NOUN
ajis02-298	208	7	in	in	ADP
ajis02-298	208	8	the	the	DET
ajis02-298	208	9	first	first	ADJ
ajis02-298	208	10	part	part	NOUN
ajis02-298	208	11	of	of	ADP
ajis02-298	208	12	this	this	DET
ajis02-298	208	13	section	section	NOUN
ajis02-298	208	14	,	,	PUNCT
ajis02-298	208	15	parts	part	NOUN
ajis02-298	208	16	of	of	ADP
ajis02-298	208	17	ssd	ssd	NOUN
ajis02-298	208	18	's	's	PART
ajis02-298	208	19	formal	formal	ADJ
ajis02-298	208	20	pvs	pvs	PROPN
ajis02-298	208	21	specification	specification	NOUN
ajis02-298	208	22	have	have	AUX
ajis02-298	208	23	been	be	AUX
ajis02-298	208	24	shown	show	VERB
ajis02-298	208	25	.	.	PUNCT
ajis02-298	209	1	now	now	ADV
ajis02-298	209	2	,	,	PUNCT
ajis02-298	209	3	this	this	DET
ajis02-298	209	4	specification	specification	NOUN
ajis02-298	209	5	will	will	AUX
ajis02-298	209	6	be	be	AUX
ajis02-298	209	7	used	use	VERB
ajis02-298	209	8	in	in	ADP
ajis02-298	209	9	a	a	DET
ajis02-298	209	10	discussion	discussion	NOUN
ajis02-298	209	11	of	of	ADP
ajis02-298	209	12	formal	formal	ADJ
ajis02-298	209	13	proof	proof	NOUN
ajis02-298	209	14	of	of	ADP
ajis02-298	209	15	requirements	requirement	NOUN
ajis02-298	209	16	.	.	PUNCT
ajis02-298	210	1	which	which	DET
ajis02-298	210	2	kind	kind	NOUN
ajis02-298	210	3	of	of	ADP
ajis02-298	210	4	properties	property	NOUN
ajis02-298	210	5	can	can	AUX
ajis02-298	210	6	be	be	AUX
ajis02-298	210	7	proved	prove	VERB
ajis02-298	210	8	in	in	ADP
ajis02-298	210	9	pvs	pvs	PROPN
ajis02-298	210	10	?	?	PUNCT
ajis02-298	211	1	in	in	ADP
ajis02-298	211	2	general	general	ADJ
ajis02-298	211	3	,	,	PUNCT
ajis02-298	211	4	axioms	axiom	NOUN
ajis02-298	211	5	and	and	CCONJ
ajis02-298	211	6	theorems	theorem	NOUN
ajis02-298	211	7	.	.	PUNCT
ajis02-298	212	1	we	we	PRON
ajis02-298	212	2	defined	define	VERB
ajis02-298	212	3	a	a	DET
ajis02-298	212	4	scenario	scenario	NOUN
ajis02-298	212	5	as	as	ADP
ajis02-298	212	6	the	the	DET
ajis02-298	212	7	set	set	NOUN
ajis02-298	212	8	of	of	ADP
ajis02-298	212	9	all	all	DET
ajis02-298	212	10	possible	possible	ADJ
ajis02-298	212	11	sequences	sequence	NOUN
ajis02-298	212	12	of	of	ADP
ajis02-298	212	13	events	event	NOUN
ajis02-298	212	14	.	.	PUNCT
ajis02-298	213	1	let	let	AUX
ajis02-298	213	2	p(scenario	p(scenario	NOUN
ajis02-298	213	3	)	)	PUNCT
ajis02-298	213	4	be	be	AUX
ajis02-298	213	5	a	a	DET
ajis02-298	213	6	certain	certain	ADJ
ajis02-298	213	7	predicate	predicate	NOUN
ajis02-298	213	8	over	over	ADP
ajis02-298	213	9	some	some	DET
ajis02-298	213	10	given	give	VERB
ajis02-298	213	11	scenario	scenario	NOUN
ajis02-298	213	12	.	.	PUNCT
ajis02-298	214	1	the	the	DET
ajis02-298	214	2	following	following	ADJ
ajis02-298	214	3	axiom	axiom	NOUN
ajis02-298	214	4	formally	formally	ADV
ajis02-298	214	5	states	state	VERB
ajis02-298	214	6	that	that	SCONJ
ajis02-298	214	7	property	property	NOUN
ajis02-298	214	8	p	p	NOUN
ajis02-298	214	9	should	should	AUX
ajis02-298	214	10	hold	hold	VERB
ajis02-298	214	11	for	for	ADP
ajis02-298	214	12	all	all	DET
ajis02-298	214	13	possible	possible	ADJ
ajis02-298	214	14	scenarios	scenario	NOUN
ajis02-298	214	15	.	.	PUNCT
ajis02-298	215	1	example_property	example_property	NOUN
ajis02-298	215	2	:	:	PUNCT
ajis02-298	215	3	axiom	axiom	PROPN
ajis02-298	215	4	forall	forall	PROPN
ajis02-298	215	5	(	(	PUNCT
ajis02-298	215	6	scenario	scenario	NOUN
ajis02-298	215	7	:	:	PUNCT
ajis02-298	215	8	scenario	scenario	NOUN
ajis02-298	215	9	):	):	PUNCT
ajis02-298	215	10	p(scenario	p(scenario	NUM
ajis02-298	215	11	)	)	PUNCT
ajis02-298	215	12	safety	safety	NOUN
ajis02-298	215	13	and	and	CCONJ
ajis02-298	215	14	liveness	liveness	NOUN
ajis02-298	215	15	an	an	DET
ajis02-298	215	16	example	example	NOUN
ajis02-298	215	17	rule	rule	NOUN
ajis02-298	215	18	taken	take	VERB
ajis02-298	215	19	from	from	ADP
ajis02-298	215	20	the	the	DET
ajis02-298	215	21	requirements	requirement	NOUN
ajis02-298	215	22	is	be	AUX
ajis02-298	215	23	given	give	VERB
ajis02-298	215	24	in	in	ADP
ajis02-298	215	25	fig	fig	NOUN
ajis02-298	215	26	.	.	PUNCT
ajis02-298	216	1	4	4	X
ajis02-298	216	2	.	.	X
ajis02-298	216	3	the	the	DET
ajis02-298	216	4	main	main	ADJ
ajis02-298	216	5	problem	problem	NOUN
ajis02-298	216	6	of	of	ADP
ajis02-298	216	7	requirements	requirement	NOUN
ajis02-298	216	8	validation	validation	NOUN
ajis02-298	216	9	is	be	AUX
ajis02-298	216	10	to	to	PART
ajis02-298	216	11	find	find	VERB
ajis02-298	216	12	something	something	PRON
ajis02-298	216	13	to	to	PART
ajis02-298	216	14	validate	validate	VERB
ajis02-298	216	15	the	the	DET
ajis02-298	216	16	system	system	NOUN
ajis02-298	216	17	against	against	ADP
ajis02-298	216	18	(	(	PUNCT
ajis02-298	216	19	sommerville	sommerville	PROPN
ajis02-298	216	20	and	and	CCONJ
ajis02-298	216	21	sawyer	sawyer	PROPN
ajis02-298	216	22	,	,	PUNCT
ajis02-298	216	23	1997	1997	NUM
ajis02-298	216	24	)	)	PUNCT
ajis02-298	216	25	.	.	PUNCT
ajis02-298	217	1	this	this	PRON
ajis02-298	217	2	is	be	AUX
ajis02-298	217	3	particularly	particularly	ADV
ajis02-298	217	4	true	true	ADJ
ajis02-298	217	5	for	for	ADP
ajis02-298	217	6	151	151	NUM
ajis02-298	217	7	this	this	DET
ajis02-298	217	8	present	present	ADJ
ajis02-298	217	9	problem	problem	NOUN
ajis02-298	217	10	,	,	PUNCT
ajis02-298	217	11	simply	simply	ADV
ajis02-298	217	12	because	because	SCONJ
ajis02-298	217	13	the	the	DET
ajis02-298	217	14	switches	switch	NOUN
ajis02-298	217	15	'	'	PART
ajis02-298	217	16	requirements	requirement	NOUN
ajis02-298	217	17	lack	lack	VERB
ajis02-298	217	18	a	a	DET
ajis02-298	217	19	clear	clear	ADJ
ajis02-298	217	20	definition	definition	NOUN
ajis02-298	217	21	of	of	ADP
ajis02-298	217	22	which	which	DET
ajis02-298	217	23	high	high	ADJ
ajis02-298	217	24	-	-	PUNCT
ajis02-298	217	25	level	level	NOUN
ajis02-298	217	26	properties	property	NOUN
ajis02-298	217	27	shall	shall	AUX
ajis02-298	217	28	hold	hold	VERB
ajis02-298	217	29	.	.	PUNCT
ajis02-298	218	1	instead	instead	ADV
ajis02-298	218	2	,	,	PUNCT
ajis02-298	218	3	most	most	ADJ
ajis02-298	218	4	of	of	ADP
ajis02-298	218	5	the	the	DET
ajis02-298	218	6	requirements	requirement	NOUN
ajis02-298	218	7	are	be	AUX
ajis02-298	218	8	given	give	VERB
ajis02-298	218	9	on	on	ADP
ajis02-298	218	10	a	a	DET
ajis02-298	218	11	low	low	ADJ
ajis02-298	218	12	operational	operational	ADJ
ajis02-298	218	13	level	level	NOUN
ajis02-298	218	14	.	.	PUNCT
ajis02-298	219	1	rule	rule	NOUN
ajis02-298	219	2	17	17	NUM
ajis02-298	219	3	:	:	PUNCT
ajis02-298	219	4	an	an	DET
ajis02-298	219	5	exit	exit	NOUN
ajis02-298	219	6	switch	switch	NOUN
ajis02-298	219	7	may	may	AUX
ajis02-298	219	8	only	only	ADV
ajis02-298	219	9	be	be	AUX
ajis02-298	219	10	sent	send	VERB
ajis02-298	219	11	,	,	PUNCT
ajis02-298	219	12	if	if	SCONJ
ajis02-298	219	13	the	the	DET
ajis02-298	219	14	target	target	NOUN
ajis02-298	219	15	is	be	AUX
ajis02-298	219	16	in	in	ADP
ajis02-298	219	17	state	state	NOUN
ajis02-298	219	18	nonblocked	nonblocke	VERB
ajis02-298	219	19	,	,	PUNCT
ajis02-298	219	20	set	set	VERB
ajis02-298	219	21	by	by	ADP
ajis02-298	219	22	the	the	DET
ajis02-298	219	23	same	same	ADJ
ajis02-298	219	24	round	round	NOUN
ajis02-298	219	25	.	.	PUNCT
ajis02-298	220	1	figure	figure	VERB
ajis02-298	220	2	4	4	NUM
ajis02-298	220	3	:	:	PUNCT
ajis02-298	220	4	one	one	NUM
ajis02-298	220	5	rule	rule	NOUN
ajis02-298	220	6	from	from	ADP
ajis02-298	220	7	ssd	ssd	NOUN
ajis02-298	220	8	's	's	PART
ajis02-298	220	9	requirements	requirement	NOUN
ajis02-298	220	10	.	.	PUNCT
ajis02-298	221	1	it	it	PRON
ajis02-298	221	2	is	be	AUX
ajis02-298	221	3	meant	mean	VERB
ajis02-298	221	4	to	to	PART
ajis02-298	221	5	serve	serve	VERB
ajis02-298	221	6	as	as	ADP
ajis02-298	221	7	an	an	DET
ajis02-298	221	8	example	example	NOUN
ajis02-298	221	9	showing	show	VERB
ajis02-298	221	10	that	that	SCONJ
ajis02-298	221	11	many	many	ADJ
ajis02-298	221	12	of	of	ADP
ajis02-298	221	13	the	the	DET
ajis02-298	221	14	requirements	requirement	NOUN
ajis02-298	221	15	focus	focus	VERB
ajis02-298	221	16	on	on	ADP
ajis02-298	221	17	a	a	DET
ajis02-298	221	18	low	low	ADJ
ajis02-298	221	19	operational	operational	ADJ
ajis02-298	221	20	level	level	NOUN
ajis02-298	221	21	rather	rather	ADV
ajis02-298	221	22	than	than	ADP
ajis02-298	221	23	stating	state	VERB
ajis02-298	221	24	which	which	DET
ajis02-298	221	25	high	high	ADJ
ajis02-298	221	26	-	-	PUNCT
ajis02-298	221	27	level	level	NOUN
ajis02-298	221	28	properties	property	NOUN
ajis02-298	221	29	should	should	AUX
ajis02-298	221	30	hold	hold	VERB
ajis02-298	221	31	.	.	PUNCT
ajis02-298	222	1	however	however	ADV
ajis02-298	222	2	,	,	PUNCT
ajis02-298	222	3	from	from	ADP
ajis02-298	222	4	re	re	VERB
ajis02-298	222	5	-	-	VERB
ajis02-298	222	6	reading	read	VERB
ajis02-298	222	7	the	the	DET
ajis02-298	222	8	requirements	requirement	NOUN
ajis02-298	222	9	and	and	CCONJ
ajis02-298	222	10	interviewing	interview	VERB
ajis02-298	222	11	domain	domain	NOUN
ajis02-298	222	12	experts	expert	NOUN
ajis02-298	222	13	,	,	PUNCT
ajis02-298	222	14	the	the	DET
ajis02-298	222	15	issues	issue	NOUN
ajis02-298	222	16	shown	show	VERB
ajis02-298	222	17	in	in	ADP
ajis02-298	222	18	fig	fig	NOUN
ajis02-298	222	19	.	.	PUNCT
ajis02-298	223	1	5	5	NUM
ajis02-298	223	2	have	have	AUX
ajis02-298	223	3	emerged	emerge	VERB
ajis02-298	223	4	.	.	PUNCT
ajis02-298	224	1	these	these	PRON
ajis02-298	224	2	will	will	AUX
ajis02-298	224	3	serve	serve	VERB
ajis02-298	224	4	us	we	PRON
ajis02-298	224	5	as	as	ADP
ajis02-298	224	6	a	a	DET
ajis02-298	224	7	starting	starting	NOUN
ajis02-298	224	8	point	point	NOUN
ajis02-298	224	9	for	for	ADP
ajis02-298	224	10	further	further	ADJ
ajis02-298	224	11	analysis	analysis	NOUN
ajis02-298	224	12	.	.	PUNCT
ajis02-298	225	1	a	a	DET
ajis02-298	225	2	missing	missing	ADJ
ajis02-298	225	3	link	link	NOUN
ajis02-298	225	4	in	in	ADP
ajis02-298	225	5	the	the	DET
ajis02-298	225	6	requirements	requirement	NOUN
ajis02-298	225	7	in	in	ADP
ajis02-298	225	8	an	an	DET
ajis02-298	225	9	attempt	attempt	NOUN
ajis02-298	225	10	to	to	PART
ajis02-298	225	11	formalize	formalize	VERB
ajis02-298	225	12	the	the	DET
ajis02-298	225	13	safety	safety	NOUN
ajis02-298	225	14	requirement	requirement	NOUN
ajis02-298	225	15	given	give	VERB
ajis02-298	225	16	in	in	ADP
ajis02-298	225	17	fig	fig	NOUN
ajis02-298	225	18	.	.	PUNCT
ajis02-298	226	1	5	5	NUM
ajis02-298	226	2	,	,	PUNCT
ajis02-298	226	3	it	it	PRON
ajis02-298	226	4	has	have	AUX
ajis02-298	226	5	turned	turn	VERB
ajis02-298	226	6	out	out	ADP
ajis02-298	226	7	that	that	SCONJ
ajis02-298	226	8	there	there	PRON
ajis02-298	226	9	is	be	VERB
ajis02-298	226	10	a	a	DET
ajis02-298	226	11	missing	miss	VERB
ajis02-298	226	12	link	link	NOUN
ajis02-298	226	13	between	between	ADP
ajis02-298	226	14	a	a	DET
ajis02-298	226	15	switch	switch	NOUN
ajis02-298	226	16	and	and	CCONJ
ajis02-298	226	17	the	the	DET
ajis02-298	226	18	station	station	NOUN
ajis02-298	226	19	that	that	PRON
ajis02-298	226	20	needs	need	VERB
ajis02-298	226	21	to	to	PART
ajis02-298	226	22	be	be	AUX
ajis02-298	226	23	hit	hit	VERB
ajis02-298	226	24	in	in	ADP
ajis02-298	226	25	order	order	NOUN
ajis02-298	226	26	to	to	PART
ajis02-298	226	27	trigger	trigger	VERB
ajis02-298	226	28	that	that	DET
ajis02-298	226	29	switch	switch	NOUN
ajis02-298	226	30	.	.	PUNCT
ajis02-298	227	1	this	this	PRON
ajis02-298	227	2	is	be	AUX
ajis02-298	227	3	particularly	particularly	ADV
ajis02-298	227	4	surprising	surprising	ADJ
ajis02-298	227	5	,	,	PUNCT
ajis02-298	227	6	because	because	SCONJ
ajis02-298	227	7	the	the	DET
ajis02-298	227	8	operator	operator	NOUN
ajis02-298	227	9	needs	need	VERB
ajis02-298	227	10	to	to	PART
ajis02-298	227	11	be	be	AUX
ajis02-298	227	12	aware	aware	ADJ
ajis02-298	227	13	of	of	ADP
ajis02-298	227	14	such	such	DET
ajis02-298	227	15	a	a	DET
ajis02-298	227	16	concept	concept	NOUN
ajis02-298	227	17	in	in	ADP
ajis02-298	227	18	round	round	ADJ
ajis02-298	227	19	setup	setup	NOUN
ajis02-298	227	20	.	.	PUNCT
ajis02-298	228	1	liveness	liveness	NOUN
ajis02-298	228	2	:	:	PUNCT
ajis02-298	228	3	is	be	AUX
ajis02-298	228	4	it	it	PRON
ajis02-298	228	5	possible	possible	ADJ
ajis02-298	228	6	that	that	SCONJ
ajis02-298	228	7	a	a	DET
ajis02-298	228	8	guard	guard	NOUN
ajis02-298	228	9	may	may	AUX
ajis02-298	228	10	not	not	PART
ajis02-298	228	11	finish	finish	VERB
ajis02-298	228	12	a	a	DET
ajis02-298	228	13	round	round	NOUN
ajis02-298	228	14	,	,	PUNCT
ajis02-298	228	15	for	for	ADP
ajis02-298	228	16	example	example	NOUN
ajis02-298	228	17	,	,	PUNCT
ajis02-298	228	18	because	because	SCONJ
ajis02-298	228	19	a	a	DET
ajis02-298	228	20	door	door	NOUN
ajis02-298	228	21	remains	remain	VERB
ajis02-298	228	22	locked	locked	ADJ
ajis02-298	228	23	?	?	PUNCT
ajis02-298	229	1	safety	safety	NOUN
ajis02-298	229	2	:	:	PUNCT
ajis02-298	229	3	is	be	AUX
ajis02-298	229	4	the	the	DET
ajis02-298	229	5	state	state	NOUN
ajis02-298	229	6	of	of	ADP
ajis02-298	229	7	the	the	DET
ajis02-298	229	8	target	target	NOUN
ajis02-298	229	9	after	after	SCONJ
ajis02-298	229	10	the	the	DET
ajis02-298	229	11	guard	guard	NOUN
ajis02-298	229	12	hit	hit	VERB
ajis02-298	229	13	equal	equal	ADJ
ajis02-298	229	14	to	to	ADP
ajis02-298	229	15	its	its	PRON
ajis02-298	229	16	initial	initial	ADJ
ajis02-298	229	17	state	state	NOUN
ajis02-298	229	18	?	?	PUNCT
ajis02-298	230	1	figure	figure	NOUN
ajis02-298	230	2	5	5	NUM
ajis02-298	230	3	:	:	SYM
ajis02-298	230	4	two	two	NUM
ajis02-298	230	5	liveness	liveness	NOUN
ajis02-298	230	6	and	and	CCONJ
ajis02-298	230	7	safety	safety	NOUN
ajis02-298	230	8	properties	property	NOUN
ajis02-298	230	9	.	.	PUNCT
ajis02-298	231	1	a	a	DET
ajis02-298	231	2	more	more	ADV
ajis02-298	231	3	restricted	restricted	ADJ
ajis02-298	231	4	property	property	NOUN
ajis02-298	231	5	there	there	PRON
ajis02-298	231	6	are	be	VERB
ajis02-298	231	7	two	two	NUM
ajis02-298	231	8	main	main	ADJ
ajis02-298	231	9	consequences	consequence	NOUN
ajis02-298	231	10	:	:	PUNCT
ajis02-298	231	11	first	first	X
ajis02-298	231	12	,	,	PUNCT
ajis02-298	231	13	an	an	DET
ajis02-298	231	14	assumption19	assumption19	NOUN
ajis02-298	231	15	has	have	VERB
ajis02-298	231	16	to	to	PART
ajis02-298	231	17	be	be	AUX
ajis02-298	231	18	added	add	VERB
ajis02-298	231	19	to	to	ADP
ajis02-298	231	20	the	the	DET
ajis02-298	231	21	requirements	requirement	NOUN
ajis02-298	231	22	in	in	ADP
ajis02-298	231	23	order	order	NOUN
ajis02-298	231	24	to	to	PART
ajis02-298	231	25	avoid	avoid	VERB
ajis02-298	231	26	possible	possible	ADJ
ajis02-298	231	27	misunderstandings	misunderstanding	NOUN
ajis02-298	231	28	between	between	ADP
ajis02-298	231	29	developers	developer	NOUN
ajis02-298	231	30	and	and	CCONJ
ajis02-298	231	31	users	user	NOUN
ajis02-298	231	32	of	of	ADP
ajis02-298	231	33	the	the	DET
ajis02-298	231	34	system	system	NOUN
ajis02-298	231	35	.	.	PUNCT
ajis02-298	232	1	second	second	ADJ
ajis02-298	232	2	,	,	PUNCT
ajis02-298	232	3	even	even	ADV
ajis02-298	232	4	though	though	SCONJ
ajis02-298	232	5	such	such	DET
ajis02-298	232	6	an	an	DET
ajis02-298	232	7	assumption	assumption	NOUN
ajis02-298	232	8	could	could	AUX
ajis02-298	232	9	be	be	AUX
ajis02-298	232	10	made	make	VERB
ajis02-298	232	11	prior	prior	ADV
ajis02-298	232	12	to	to	ADP
ajis02-298	232	13	further	further	ADJ
ajis02-298	232	14	formal	formal	ADJ
ajis02-298	232	15	analysis	analysis	NOUN
ajis02-298	232	16	,	,	PUNCT
ajis02-298	232	17	we	we	PRON
ajis02-298	232	18	need	need	VERB
ajis02-298	232	19	to	to	PART
ajis02-298	232	20	find	find	VERB
ajis02-298	232	21	a	a	DET
ajis02-298	232	22	more	more	ADV
ajis02-298	232	23	relaxed	relaxed	ADJ
ajis02-298	232	24	liveness	liveness	NOUN
ajis02-298	232	25	property	property	NOUN
ajis02-298	232	26	for	for	ADP
ajis02-298	232	27	ssd	ssd	NOUN
ajis02-298	232	28	.	.	PUNCT
ajis02-298	233	1	otherwise	otherwise	ADV
ajis02-298	233	2	,	,	PUNCT
ajis02-298	233	3	a	a	DET
ajis02-298	233	4	conclusion	conclusion	NOUN
ajis02-298	233	5	meaningless	meaningless	ADJ
ajis02-298	233	6	for	for	ADP
ajis02-298	233	7	the	the	DET
ajis02-298	233	8	existing	exist	VERB
ajis02-298	233	9	implementation	implementation	NOUN
ajis02-298	233	10	of	of	ADP
ajis02-298	233	11	ssd	ssd	NOUN
ajis02-298	233	12	could	could	AUX
ajis02-298	233	13	possibly	possibly	ADV
ajis02-298	233	14	be	be	AUX
ajis02-298	233	15	drawn	draw	VERB
ajis02-298	233	16	from	from	ADP
ajis02-298	233	17	a	a	DET
ajis02-298	233	18	too	too	ADV
ajis02-298	233	19	restrictive	restrictive	ADJ
ajis02-298	233	20	assumption	assumption	NOUN
ajis02-298	233	21	.	.	PUNCT
ajis02-298	234	1	the	the	DET
ajis02-298	234	2	following	follow	VERB
ajis02-298	234	3	axiom	axiom	NOUN
ajis02-298	234	4	tst_do_not_change	tst_do_not_change	NOUN
ajis02-298	234	5	states	state	VERB
ajis02-298	234	6	that	that	SCONJ
ajis02-298	234	7	for	for	ADP
ajis02-298	234	8	all	all	DET
ajis02-298	234	9	scenarios	scenario	NOUN
ajis02-298	234	10	sc	sc	PROPN
ajis02-298	234	11	the	the	DET
ajis02-298	234	12	initial	initial	ADJ
ajis02-298	234	13	target	target	NOUN
ajis02-298	234	14	state	state	NOUN
ajis02-298	234	15	is	be	AUX
ajis02-298	234	16	equal	equal	ADJ
ajis02-298	234	17	to	to	ADP
ajis02-298	234	18	the	the	DET
ajis02-298	234	19	final	final	ADJ
ajis02-298	234	20	one	one	NUM
ajis02-298	234	21	.	.	PUNCT
ajis02-298	235	1	tst_do_not_change	tst_do_not_change	NOUN
ajis02-298	235	2	:	:	PUNCT
ajis02-298	235	3	axiom	axiom	PROPN
ajis02-298	235	4	forall	forall	PROPN
ajis02-298	235	5	(	(	PUNCT
ajis02-298	235	6	sc	sc	PROPN
ajis02-298	235	7	:	:	PUNCT
ajis02-298	235	8	scenario	scenario	NOUN
ajis02-298	235	9	):	):	PUNCT
ajis02-298	235	10	(	(	PUNCT
ajis02-298	235	11	length(sc)?=l	length(sc)?=l	PROPN
ajis02-298	235	12	and	and	CCONJ
ajis02-298	235	13	forall	forall	PROPN
ajis02-298	235	14	(	(	PUNCT
ajis02-298	235	15	ev	ev	ADJ
ajis02-298	235	16	:	:	PUNCT
ajis02-298	235	17	ev	ev	PROPN
ajis02-298	235	18	)	)	PUNCT
ajis02-298	235	19	,	,	PUNCT
ajis02-298	235	20	(	(	PUNCT
ajis02-298	235	21	rid	rid	VERB
ajis02-298	235	22	:	:	PUNCT
ajis02-298	235	23	r.id	r.id	PROPN
ajis02-298	235	24	):	):	PUNCT
ajis02-298	235	25	member(ev	member(ev	PROPN
ajis02-298	235	26	,	,	PUNCT
ajis02-298	235	27	sc	sc	PROPN
ajis02-298	235	28	)	)	PUNCT
ajis02-298	235	29	and	and	CCONJ
ajis02-298	235	30	rid	rid	VERB
ajis02-298	235	31	=	=	NOUN
ajis02-298	235	32	tr_rid(trig(ev	tr_rid(trig(ev	NOUN
ajis02-298	235	33	)	)	PUNCT
ajis02-298	235	34	)	)	PUNCT
ajis02-298	235	35	)	)	PUNCT
ajis02-298	235	36	implies	imply	VERB
ajis02-298	235	37	tdb(sys_before(nth(sc,0	tdb(sys_before(nth(sc,0	NOUN
ajis02-298	235	38	)	)	PUNCT
ajis02-298	235	39	)	)	PUNCT
ajis02-298	235	40	)	)	PUNCT
ajis02-298	236	1	=	=	SYM
ajis02-298	236	2	19please	19please	NUM
ajis02-298	236	3	recall	recall	VERB
ajis02-298	236	4	that	that	SCONJ
ajis02-298	236	5	there	there	PRON
ajis02-298	236	6	are	be	VERB
ajis02-298	236	7	entry	entry	NOUN
ajis02-298	236	8	and	and	CCONJ
ajis02-298	236	9	exit	exit	NOUN
ajis02-298	236	10	switches	switch	NOUN
ajis02-298	236	11	.	.	PUNCT
ajis02-298	237	1	an	an	DET
ajis02-298	237	2	entry	entry	NOUN
ajis02-298	237	3	switch	switch	NOUN
ajis02-298	237	4	unblocks	unblock	VERB
ajis02-298	237	5	some	some	DET
ajis02-298	237	6	target	target	NOUN
ajis02-298	237	7	/	/	SYM
ajis02-298	237	8	obstacle	obstacle	NOUN
ajis02-298	237	9	,	,	PUNCT
ajis02-298	237	10	whereas	whereas	SCONJ
ajis02-298	237	11	and	and	CCONJ
ajis02-298	237	12	exit	exit	NOUN
ajis02-298	237	13	switch	switch	NOUN
ajis02-298	237	14	blocks	block	VERB
ajis02-298	237	15	it	it	PRON
ajis02-298	237	16	.	.	PUNCT
ajis02-298	238	1	an	an	DET
ajis02-298	238	2	assumption	assumption	NOUN
ajis02-298	238	3	could	could	AUX
ajis02-298	238	4	be	be	AUX
ajis02-298	238	5	of	of	ADP
ajis02-298	238	6	the	the	DET
ajis02-298	238	7	following	follow	VERB
ajis02-298	238	8	form	form	NOUN
ajis02-298	238	9	:	:	PUNCT
ajis02-298	238	10	if	if	SCONJ
ajis02-298	238	11	some	some	DET
ajis02-298	238	12	target	target	NOUN
ajis02-298	238	13	ti	ti	NOUN
ajis02-298	238	14	is	be	AUX
ajis02-298	238	15	assigned	assign	VERB
ajis02-298	238	16	to	to	ADP
ajis02-298	238	17	some	some	DET
ajis02-298	238	18	station	station	NOUN
ajis02-298	238	19	si	si	X
ajis02-298	238	20	in	in	ADP
ajis02-298	238	21	terms	term	NOUN
ajis02-298	238	22	of	of	ADP
ajis02-298	238	23	an	an	DET
ajis02-298	238	24	entry	entry	NOUN
ajis02-298	238	25	switch	switch	NOUN
ajis02-298	238	26	,	,	PUNCT
ajis02-298	238	27	the	the	DET
ajis02-298	238	28	guard	guard	NOUN
ajis02-298	238	29	passes	pass	VERB
ajis02-298	238	30	that	that	DET
ajis02-298	238	31	target	target	NOUN
ajis02-298	238	32	on	on	ADP
ajis02-298	238	33	the	the	DET
ajis02-298	238	34	way	way	NOUN
ajis02-298	238	35	from	from	ADP
ajis02-298	238	36	station	station	NOUN
ajis02-298	238	37	si	si	NOUN
ajis02-298	238	38	to	to	PART
ajis02-298	238	39	station	station	VERB
ajis02-298	238	40	si	si	PROPN
ajis02-298	238	41	,	,	PUNCT
ajis02-298	238	42	i.	i.	NOUN
ajis02-298	238	43	if	if	SCONJ
ajis02-298	238	44	a	a	DET
ajis02-298	238	45	target	target	NOUN
ajis02-298	238	46	t2	t2	NOUN
ajis02-298	238	47	is	be	AUX
ajis02-298	238	48	assigned	assign	VERB
ajis02-298	238	49	to	to	ADP
ajis02-298	238	50	some	some	DET
ajis02-298	238	51	station	station	NOUN
ajis02-298	238	52	sj	sj	VERB
ajis02-298	238	53	in	in	ADP
ajis02-298	238	54	terms	term	NOUN
ajis02-298	238	55	of	of	ADP
ajis02-298	238	56	an	an	DET
ajis02-298	238	57	exit	exit	NOUN
ajis02-298	238	58	switch	switch	NOUN
ajis02-298	238	59	,	,	PUNCT
ajis02-298	238	60	the	the	DET
ajis02-298	238	61	guard	guard	NOUN
ajis02-298	238	62	passes	pass	VERB
ajis02-298	238	63	it	it	PRON
ajis02-298	238	64	between	between	ADP
ajis02-298	238	65	station	station	NOUN
ajis02-298	238	66	sj.i	sj.i	NOUN
ajis02-298	238	67	and	and	CCONJ
ajis02-298	238	68	station	station	NOUN
ajis02-298	238	69	s^	s^	NOUN
ajis02-298	238	70	(	(	PUNCT
ajis02-298	238	71	it	it	PRON
ajis02-298	238	72	is	be	AUX
ajis02-298	238	73	assumed	assume	VERB
ajis02-298	238	74	that	that	SCONJ
ajis02-298	238	75	stations	station	NOUN
ajis02-298	238	76	si	si	X
ajis02-298	238	77	,	,	PUNCT
ajis02-298	238	78	s	s	PART
ajis02-298	238	79	i4	i4	PROPN
ajis02-298	238	80	l	l	PROPN
ajis02-298	238	81	and	and	CCONJ
ajis02-298	238	82	sj	sj	NOUN
ajis02-298	238	83	-	-	NOUN
ajis02-298	238	84	i	i	PRON
ajis02-298	238	85	,	,	PUNCT
ajis02-298	238	86	sj	sj	INTJ
ajis02-298	238	87	are	be	AUX
ajis02-298	238	88	not	not	PART
ajis02-298	238	89	deactivated	deactivate	VERB
ajis02-298	238	90	)	)	PUNCT
ajis02-298	238	91	.	.	PUNCT
ajis02-298	239	1	152	152	NUM
ajis02-298	239	2	tdb(sys_after(nth(sc	tdb(sys_after(nth(sc	NOUN
ajis02-298	239	3	,	,	PUNCT
ajis02-298	239	4	length(sc)length(sc)?=l	length(sc)length(sc)?=l	PROPN
ajis02-298	239	5	restricts	restrict	VERB
ajis02-298	239	6	the	the	DET
ajis02-298	239	7	consideration	consideration	NOUN
ajis02-298	239	8	to	to	ADP
ajis02-298	239	9	those	those	DET
ajis02-298	239	10	scenarios	scenario	NOUN
ajis02-298	239	11	consisting	consist	VERB
ajis02-298	239	12	of	of	ADP
ajis02-298	239	13	one	one	NUM
ajis02-298	239	14	event	event	NOUN
ajis02-298	239	15	or	or	CCONJ
ajis02-298	239	16	more	more	ADJ
ajis02-298	239	17	.	.	PUNCT
ajis02-298	240	1	member(ev	member(ev	PROPN
ajis02-298	240	2	,	,	PUNCT
ajis02-298	240	3	sc	sc	PROPN
ajis02-298	240	4	)	)	PUNCT
ajis02-298	240	5	makes	make	VERB
ajis02-298	240	6	sure	sure	ADJ
ajis02-298	240	7	that	that	SCONJ
ajis02-298	240	8	event	event	NOUN
ajis02-298	240	9	ev	ev	X
ajis02-298	240	10	is	be	AUX
ajis02-298	240	11	indeed	indeed	ADV
ajis02-298	240	12	part	part	NOUN
ajis02-298	240	13	of	of	ADP
ajis02-298	240	14	scenario	scenario	PROPN
ajis02-298	240	15	sc	sc	PROPN
ajis02-298	240	16	.	.	PUNCT
ajis02-298	241	1	round	round	PROPN
ajis02-298	241	2	i	i	PROPN
ajis02-298	241	3	d	d	PROPN
ajis02-298	241	4	rid	rid	VERB
ajis02-298	241	5	is	be	AUX
ajis02-298	241	6	bound	bind	VERB
ajis02-298	241	7	to	to	ADP
ajis02-298	241	8	the	the	DET
ajis02-298	241	9	round	round	NOUN
ajis02-298	241	10	related	relate	VERB
ajis02-298	241	11	to	to	ADP
ajis02-298	241	12	the	the	DET
ajis02-298	241	13	trigger	trigger	NOUN
ajis02-298	241	14	by	by	ADP
ajis02-298	241	15	rid	rid	ADJ
ajis02-298	241	16	=	=	NOUN
ajis02-298	241	17	tr_rid(trig(ev	tr_rid(trig(ev	NOUN
ajis02-298	241	18	)	)	PUNCT
ajis02-298	241	19	)	)	PUNCT
ajis02-298	241	20	.	.	PUNCT
ajis02-298	242	1	tdb(sys_before(nth(sc	tdb(sys_before(nth(sc	PROPN
ajis02-298	242	2	,	,	PUNCT
ajis02-298	242	3	i	i	NOUN
ajis02-298	242	4	)	)	PUNCT
ajis02-298	242	5	)	)	PUNCT
ajis02-298	242	6	)	)	PUNCT
ajis02-298	242	7	extracts	extract	VERB
ajis02-298	242	8	the	the	DET
ajis02-298	242	9	states	state	NOUN
ajis02-298	242	10	of	of	ADP
ajis02-298	242	11	the	the	DET
ajis02-298	242	12	targets	target	NOUN
ajis02-298	242	13	before	before	ADP
ajis02-298	242	14	the	the	DET
ajis02-298	242	15	ith	ith	PROPN
ajis02-298	242	16	event	event	NOUN
ajis02-298	242	17	.	.	PUNCT
ajis02-298	243	1	according	accord	VERB
ajis02-298	243	2	to	to	ADP
ajis02-298	243	3	our	our	PRON
ajis02-298	243	4	understanding	understanding	NOUN
ajis02-298	243	5	,	,	PUNCT
ajis02-298	243	6	this	this	DET
ajis02-298	243	7	property	property	NOUN
ajis02-298	243	8	should	should	AUX
ajis02-298	243	9	be	be	AUX
ajis02-298	243	10	provable	provable	ADJ
ajis02-298	243	11	.	.	PUNCT
ajis02-298	244	1	however	however	ADV
ajis02-298	244	2	,	,	PUNCT
ajis02-298	244	3	we	we	PRON
ajis02-298	244	4	did	do	AUX
ajis02-298	244	5	not	not	PART
ajis02-298	244	6	succeed	succeed	VERB
ajis02-298	244	7	.	.	PUNCT
ajis02-298	245	1	is	be	AUX
ajis02-298	245	2	it	it	PRON
ajis02-298	245	3	impossible	impossible	ADJ
ajis02-298	245	4	to	to	PART
ajis02-298	245	5	show	show	VERB
ajis02-298	245	6	,	,	PUNCT
ajis02-298	245	7	based	base	VERB
ajis02-298	245	8	on	on	ADP
ajis02-298	245	9	the	the	DET
ajis02-298	245	10	given	give	VERB
ajis02-298	245	11	specification	specification	NOUN
ajis02-298	245	12	?	?	PUNCT
ajis02-298	246	1	for	for	ADP
ajis02-298	246	2	several	several	ADJ
ajis02-298	246	3	reasons	reason	NOUN
ajis02-298	246	4	,	,	PUNCT
ajis02-298	246	5	this	this	PRON
ajis02-298	246	6	is	be	AUX
ajis02-298	246	7	a	a	DET
ajis02-298	246	8	difficult	difficult	ADJ
ajis02-298	246	9	question	question	NOUN
ajis02-298	246	10	to	to	PART
ajis02-298	246	11	answer	answer	VERB
ajis02-298	246	12	:	:	PUNCT
ajis02-298	246	13	first	first	ADV
ajis02-298	246	14	,	,	PUNCT
ajis02-298	246	15	pvs	pvs	PROPN
ajis02-298	246	16	has	have	VERB
ajis02-298	246	17	a	a	DET
ajis02-298	246	18	great	great	ADJ
ajis02-298	246	19	variety	variety	NOUN
ajis02-298	246	20	of	of	ADP
ajis02-298	246	21	prover	prover	NOUN
ajis02-298	246	22	commands	command	NOUN
ajis02-298	246	23	with	with	ADP
ajis02-298	246	24	plenty	plenty	NOUN
ajis02-298	246	25	of	of	ADP
ajis02-298	246	26	options	option	NOUN
ajis02-298	246	27	.	.	PUNCT
ajis02-298	247	1	which	which	DET
ajis02-298	247	2	ones	one	NOUN
ajis02-298	247	3	are	be	AUX
ajis02-298	247	4	suitable	suitable	ADJ
ajis02-298	247	5	?	?	PUNCT
ajis02-298	248	1	second	second	ADV
ajis02-298	248	2	,	,	PUNCT
ajis02-298	248	3	the	the	DET
ajis02-298	248	4	very	very	ADJ
ajis02-298	248	5	structure	structure	NOUN
ajis02-298	248	6	of	of	ADP
ajis02-298	248	7	the	the	DET
ajis02-298	248	8	specification	specification	NOUN
ajis02-298	248	9	is	be	AUX
ajis02-298	248	10	known	know	VERB
ajis02-298	248	11	to	to	PART
ajis02-298	248	12	have	have	VERB
ajis02-298	248	13	a	a	DET
ajis02-298	248	14	major	major	ADJ
ajis02-298	248	15	impact	impact	NOUN
ajis02-298	248	16	on	on	ADP
ajis02-298	248	17	the	the	DET
ajis02-298	248	18	success	success	NOUN
ajis02-298	248	19	of	of	ADP
ajis02-298	248	20	a	a	DET
ajis02-298	248	21	proof	proof	NOUN
ajis02-298	248	22	.	.	PUNCT
ajis02-298	249	1	third	third	ADJ
ajis02-298	249	2	,	,	PUNCT
ajis02-298	249	3	it	it	PRON
ajis02-298	249	4	is	be	AUX
ajis02-298	249	5	not	not	PART
ajis02-298	249	6	straightforward	straightforward	ADJ
ajis02-298	249	7	to	to	PART
ajis02-298	249	8	track	track	VERB
ajis02-298	249	9	down	down	ADP
ajis02-298	249	10	the	the	DET
ajis02-298	249	11	relationship	relationship	NOUN
ajis02-298	249	12	between	between	ADP
ajis02-298	249	13	the	the	DET
ajis02-298	249	14	description	description	NOUN
ajis02-298	249	15	of	of	ADP
ajis02-298	249	16	pvs	pvs	PROPN
ajis02-298	249	17	logic	logic	NOUN
ajis02-298	249	18	in	in	ADP
ajis02-298	249	19	the	the	DET
ajis02-298	249	20	manuals	manual	NOUN
ajis02-298	249	21	and	and	CCONJ
ajis02-298	249	22	its	its	PRON
ajis02-298	249	23	actual	actual	ADJ
ajis02-298	249	24	behavior	behavior	NOUN
ajis02-298	249	25	.	.	PUNCT
ajis02-298	250	1	finally	finally	ADV
ajis02-298	250	2	,	,	PUNCT
ajis02-298	250	3	pvs	pvs	PROPN
ajis02-298	250	4	is	be	AUX
ajis02-298	250	5	known	know	VERB
ajis02-298	250	6	to	to	PART
ajis02-298	250	7	have	have	VERB
ajis02-298	250	8	possible	possible	ADJ
ajis02-298	250	9	sources	source	NOUN
ajis02-298	250	10	of	of	ADP
ajis02-298	250	11	errors	error	NOUN
ajis02-298	250	12	.	.	PUNCT
ajis02-298	251	1	the	the	DET
ajis02-298	251	2	following	follow	VERB
ajis02-298	251	3	two	two	NUM
ajis02-298	251	4	axioms	axiom	NOUN
ajis02-298	251	5	can	can	AUX
ajis02-298	251	6	be	be	AUX
ajis02-298	251	7	shown	show	VERB
ajis02-298	251	8	to	to	PART
ajis02-298	251	9	hold	hold	VERB
ajis02-298	251	10	:	:	PUNCT
ajis02-298	251	11	tst_may_change	tst_may_change	NOUN
ajis02-298	251	12	states	state	VERB
ajis02-298	251	13	that	that	SCONJ
ajis02-298	251	14	there	there	PRON
ajis02-298	251	15	exists	exist	VERB
ajis02-298	251	16	a	a	DET
ajis02-298	251	17	scenario	scenario	NOUN
ajis02-298	251	18	where	where	SCONJ
ajis02-298	251	19	the	the	DET
ajis02-298	251	20	equality	equality	NOUN
ajis02-298	251	21	does	do	AUX
ajis02-298	251	22	not	not	PART
ajis02-298	251	23	hold	hold	VERB
ajis02-298	251	24	.	.	PUNCT
ajis02-298	252	1	in	in	ADP
ajis02-298	252	2	fact	fact	NOUN
ajis02-298	252	3	,	,	PUNCT
ajis02-298	252	4	it	it	PRON
ajis02-298	252	5	is	be	AUX
ajis02-298	252	6	the	the	DET
ajis02-298	252	7	inverse	inverse	NOUN
ajis02-298	252	8	of	of	ADP
ajis02-298	252	9	the	the	DET
ajis02-298	252	10	previous	previous	ADJ
ajis02-298	252	11	axiom	axiom	NOUN
ajis02-298	252	12	.	.	PUNCT
ajis02-298	253	1	tst_do_not_change_restrict	tst_do_not_change_restrict	NOUN
ajis02-298	253	2	can	can	AUX
ajis02-298	253	3	also	also	ADV
ajis02-298	253	4	be	be	AUX
ajis02-298	253	5	proved	prove	VERB
ajis02-298	253	6	.	.	PUNCT
ajis02-298	254	1	it	it	PRON
ajis02-298	254	2	states	state	VERB
ajis02-298	254	3	that	that	SCONJ
ajis02-298	254	4	for	for	ADP
ajis02-298	254	5	all	all	DET
ajis02-298	254	6	scenarios	scenario	NOUN
ajis02-298	254	7	,	,	PUNCT
ajis02-298	254	8	where	where	SCONJ
ajis02-298	254	9	there	there	PRON
ajis02-298	254	10	is	be	VERB
ajis02-298	254	11	no	no	DET
ajis02-298	254	12	interrupt	interrupt	ADJ
ajis02-298	254	13	,	,	PUNCT
ajis02-298	254	14	the	the	DET
ajis02-298	254	15	initial	initial	ADJ
ajis02-298	254	16	target	target	NOUN
ajis02-298	254	17	state	state	NOUN
ajis02-298	254	18	is	be	AUX
ajis02-298	254	19	equal	equal	ADJ
ajis02-298	254	20	to	to	ADP
ajis02-298	254	21	the	the	DET
ajis02-298	254	22	final	final	ADJ
ajis02-298	254	23	one	one	NUM
ajis02-298	254	24	.	.	PUNCT
ajis02-298	255	1	tst_may_change	tst_may_change	NOUN
ajis02-298	255	2	:	:	PUNCT
ajis02-298	255	3	axiom	axiom	NOUN
ajis02-298	255	4	exists	exist	VERB
ajis02-298	255	5	(	(	PUNCT
ajis02-298	255	6	sc	sc	NOUN
ajis02-298	255	7	:	:	PUNCT
ajis02-298	255	8	scenario	scenario	NOUN
ajis02-298	255	9	)	)	PUNCT
ajis02-298	255	10	:	:	PUNCT
ajis02-298	255	11	(	(	PUNCT
ajis02-298	255	12	length(sc)?=l	length(sc)?=l	PROPN
ajis02-298	255	13	and	and	CCONJ
ajis02-298	255	14	forall	forall	PROPN
ajis02-298	255	15	(	(	PUNCT
ajis02-298	255	16	ev	ev	ADJ
ajis02-298	255	17	:	:	PUNCT
ajis02-298	255	18	ev	ev	PROPN
ajis02-298	255	19	)	)	PUNCT
ajis02-298	255	20	,	,	PUNCT
ajis02-298	255	21	(	(	PUNCT
ajis02-298	255	22	rid	rid	VERB
ajis02-298	255	23	:	:	PUNCT
ajis02-298	255	24	r.id	r.id	PROPN
ajis02-298	255	25	)	)	PUNCT
ajis02-298	255	26	:	:	PUNCT
ajis02-298	255	27	member(ev	member(ev	PROPN
ajis02-298	255	28	,	,	PUNCT
ajis02-298	255	29	sc	sc	PROPN
ajis02-298	255	30	)	)	PUNCT
ajis02-298	255	31	and	and	CCONJ
ajis02-298	255	32	rid	rid	VERB
ajis02-298	255	33	=	=	NOUN
ajis02-298	255	34	tr_rid(trig(ev	tr_rid(trig(ev	NOUN
ajis02-298	255	35	)	)	PUNCT
ajis02-298	255	36	)	)	PUNCT
ajis02-298	255	37	)	)	PUNCT
ajis02-298	255	38	implies	imply	VERB
ajis02-298	255	39	tdb(sys_before(nth(sc,0	tdb(sys_before(nth(sc,0	NOUN
ajis02-298	255	40	)	)	PUNCT
ajis02-298	255	41	)	)	PUNCT
ajis02-298	255	42	)	)	PUNCT
ajis02-298	256	1	/=	/=	PROPN
ajis02-298	257	1	tdb(sys_after(nth(sc	tdb(sys_after(nth(sc	NOUN
ajis02-298	257	2	,	,	PUNCT
ajis02-298	257	3	length(sc)1	length(sc)1	NOUN
ajis02-298	257	4	)	)	PUNCT
ajis02-298	257	5	)	)	PUNCT
ajis02-298	257	6	)	)	PUNCT
ajis02-298	258	1	tst_do_not_change_restricted	tst_do_not_change_restricte	VERB
ajis02-298	258	2	:	:	PUNCT
ajis02-298	258	3	axiom	axiom	NOUN
ajis02-298	258	4	forall	forall	PROPN
ajis02-298	258	5	(	(	PUNCT
ajis02-298	258	6	sc	sc	NOUN
ajis02-298	258	7	:	:	PUNCT
ajis02-298	258	8	scenario	scenario	NOUN
ajis02-298	258	9	)	)	PUNCT
ajis02-298	258	10	:	:	PUNCT
ajis02-298	258	11	(	(	PUNCT
ajis02-298	258	12	forall	forall	X
ajis02-298	258	13	(	(	PUNCT
ajis02-298	258	14	ev	ev	ADJ
ajis02-298	258	15	:	:	PUNCT
ajis02-298	258	16	ev	ev	PROPN
ajis02-298	258	17	)	)	PUNCT
ajis02-298	258	18	,	,	PUNCT
ajis02-298	258	19	(	(	PUNCT
ajis02-298	258	20	rid	rid	VERB
ajis02-298	258	21	:	:	PUNCT
ajis02-298	258	22	r.id	r.id	PROPN
ajis02-298	258	23	)	)	PUNCT
ajis02-298	258	24	:	:	PUNCT
ajis02-298	258	25	length(sc)?=l	length(sc)?=l	PROPN
ajis02-298	258	26	and	and	CCONJ
ajis02-298	258	27	r_state(rdb(sys_before(ev))(rid	r_state(rdb(sys_before(ev))(rid	PROPN
ajis02-298	258	28	)	)	PUNCT
ajis02-298	258	29	)	)	PUNCT
ajis02-298	259	1	/=	/=	PROPN
ajis02-298	259	2	interrupted	interrupted	ADJ
ajis02-298	259	3	and	and	CCONJ
ajis02-298	259	4	member(ev	member(ev	PROPN
ajis02-298	259	5	,	,	PUNCT
ajis02-298	259	6	sc	sc	PROPN
ajis02-298	259	7	)	)	PUNCT
ajis02-298	259	8	and	and	CCONJ
ajis02-298	259	9	rid	rid	VERB
ajis02-298	259	10	=	=	NOUN
ajis02-298	259	11	tr_rid(trig(ev	tr_rid(trig(ev	NOUN
ajis02-298	259	12	)	)	PUNCT
ajis02-298	259	13	)	)	PUNCT
ajis02-298	259	14	)	)	PUNCT
ajis02-298	259	15	implies	imply	VERB
ajis02-298	259	16	tdb(sys_before(nth(sc,0	tdb(sys_before(nth(sc,0	NOUN
ajis02-298	259	17	)	)	PUNCT
ajis02-298	259	18	)	)	PUNCT
ajis02-298	259	19	)	)	PUNCT
ajis02-298	260	1	=	=	SYM
ajis02-298	260	2	tdb(sys_after(nth(sc	tdb(sys_after(nth(sc	NOUN
ajis02-298	260	3	,	,	PUNCT
ajis02-298	260	4	length(sc)1	length(sc)1	NOUN
ajis02-298	260	5	)	)	PUNCT
ajis02-298	260	6	)	)	PUNCT
ajis02-298	260	7	)	)	PUNCT
ajis02-298	260	8	discussion	discussion	NOUN
ajis02-298	260	9	this	this	DET
ajis02-298	260	10	case	case	NOUN
ajis02-298	260	11	study	study	NOUN
ajis02-298	260	12	had	have	VERB
ajis02-298	260	13	two	two	NUM
ajis02-298	260	14	main	main	ADJ
ajis02-298	260	15	objectives	objective	NOUN
ajis02-298	260	16	:	:	PUNCT
ajis02-298	260	17	first	first	ADV
ajis02-298	260	18	,	,	PUNCT
ajis02-298	260	19	to	to	PART
ajis02-298	260	20	analyze	analyze	VERB
ajis02-298	260	21	ssd	ssd	NOUN
ajis02-298	260	22	's	's	PART
ajis02-298	260	23	requirements	requirement	NOUN
ajis02-298	260	24	.	.	PUNCT
ajis02-298	261	1	the	the	DET
ajis02-298	261	2	results	result	NOUN
ajis02-298	261	3	will	will	AUX
ajis02-298	261	4	be	be	AUX
ajis02-298	261	5	given	give	VERB
ajis02-298	261	6	in	in	ADP
ajis02-298	261	7	sec	sec	PROPN
ajis02-298	261	8	.	.	PROPN
ajis02-298	262	1	4	4	NUM
ajis02-298	262	2	.	.	NOUN
ajis02-298	262	3	1	1	NUM
ajis02-298	262	4	.	.	PUNCT
ajis02-298	263	1	second	second	ADJ
ajis02-298	263	2	,	,	PUNCT
ajis02-298	263	3	to	to	PART
ajis02-298	263	4	investigate	investigate	VERB
ajis02-298	263	5	the	the	DET
ajis02-298	263	6	benefits	benefit	NOUN
ajis02-298	263	7	of	of	ADP
ajis02-298	263	8	formal	formal	ADJ
ajis02-298	263	9	proof	proof	NOUN
ajis02-298	263	10	on	on	ADP
ajis02-298	263	11	an	an	DET
ajis02-298	263	12	industrial	industrial	ADJ
ajis02-298	263	13	application	application	NOUN
ajis02-298	263	14	.	.	PUNCT
ajis02-298	264	1	prior	prior	ADV
ajis02-298	264	2	to	to	ADP
ajis02-298	264	3	this	this	DET
ajis02-298	264	4	case	case	NOUN
ajis02-298	264	5	study	study	NOUN
ajis02-298	264	6	,	,	PUNCT
ajis02-298	264	7	the	the	DET
ajis02-298	264	8	requirements	requirement	NOUN
ajis02-298	264	9	have	have	AUX
ajis02-298	264	10	been	be	AUX
ajis02-298	264	11	analyzed	analyze	VERB
ajis02-298	264	12	by	by	ADP
ajis02-298	264	13	means	mean	NOUN
ajis02-298	264	14	of	of	ADP
ajis02-298	264	15	testing	testing	NOUN
ajis02-298	264	16	supported	support	VERB
ajis02-298	264	17	by	by	ADP
ajis02-298	264	18	the	the	DET
ajis02-298	264	19	if	if	SCONJ
ajis02-298	264	20	ad	ad	NOUN
ajis02-298	264	21	toolbox	toolbox	NOUN
ajis02-298	264	22	.	.	PUNCT
ajis02-298	265	1	a	a	DET
ajis02-298	265	2	comparison	comparison	NOUN
ajis02-298	265	3	between	between	ADP
ajis02-298	265	4	these	these	DET
ajis02-298	265	5	alternative	alternative	ADJ
ajis02-298	265	6	approaches	approach	NOUN
ajis02-298	265	7	will	will	AUX
ajis02-298	265	8	be	be	AUX
ajis02-298	265	9	given	give	VERB
ajis02-298	265	10	in	in	ADP
ajis02-298	265	11	sec	sec	PROPN
ajis02-298	265	12	.	.	PROPN
ajis02-298	266	1	4.2	4.2	NUM
ajis02-298	266	2	.	.	PUNCT
ajis02-298	267	1	application	application	NOUN
ajis02-298	267	2	specific	specific	ADJ
ajis02-298	267	3	result	result	NOUN
ajis02-298	267	4	formal	formal	ADJ
ajis02-298	267	5	properties	property	NOUN
ajis02-298	267	6	.	.	PUNCT
ajis02-298	268	1	in	in	ADP
ajis02-298	268	2	this	this	DET
ajis02-298	268	3	case	case	NOUN
ajis02-298	268	4	study	study	NOUN
ajis02-298	268	5	,	,	PUNCT
ajis02-298	268	6	a	a	DET
ajis02-298	268	7	more	more	ADV
ajis02-298	268	8	thorough	thorough	ADJ
ajis02-298	268	9	understanding	understanding	NOUN
ajis02-298	268	10	of	of	ADP
ajis02-298	268	11	the	the	DET
ajis02-298	268	12	requirements	requirement	NOUN
ajis02-298	268	13	has	have	AUX
ajis02-298	268	14	been	be	AUX
ajis02-298	268	15	achieved	achieve	VERB
ajis02-298	268	16	,	,	PUNCT
ajis02-298	268	17	including	include	VERB
ajis02-298	268	18	a	a	DET
ajis02-298	268	19	few	few	ADJ
ajis02-298	268	20	properties	property	NOUN
ajis02-298	268	21	which	which	PRON
ajis02-298	268	22	have	have	AUX
ajis02-298	268	23	been	be	AUX
ajis02-298	268	24	expressed	express	VERB
ajis02-298	268	25	formally	formally	ADV
ajis02-298	268	26	by	by	ADP
ajis02-298	268	27	means	mean	NOUN
ajis02-298	268	28	of	of	ADP
ajis02-298	268	29	axioms	axiom	NOUN
ajis02-298	268	30	.	.	PUNCT
ajis02-298	269	1	in	in	ADP
ajis02-298	269	2	a	a	DET
ajis02-298	269	3	sense	sense	NOUN
ajis02-298	269	4	that	that	SCONJ
ajis02-298	269	5	their	their	PRON
ajis02-298	269	6	level	level	NOUN
ajis02-298	269	7	of	of	ADP
ajis02-298	269	8	generality	generality	NOUN
ajis02-298	269	9	can	can	AUX
ajis02-298	269	10	be	be	AUX
ajis02-298	269	11	chosen	choose	VERB
ajis02-298	269	12	by	by	ADP
ajis02-298	269	13	the	the	DET
ajis02-298	269	14	developer	developer	NOUN
ajis02-298	269	15	,	,	PUNCT
ajis02-298	269	16	axioms	axiom	NOUN
ajis02-298	269	17	have	have	AUX
ajis02-298	269	18	shown	show	VERB
ajis02-298	269	19	to	to	PART
ajis02-298	269	20	be	be	AUX
ajis02-298	269	21	more	more	ADV
ajis02-298	269	22	flexible	flexible	ADJ
ajis02-298	269	23	than	than	ADP
ajis02-298	269	24	single	single	ADJ
ajis02-298	269	25	test	test	NOUN
ajis02-298	269	26	cases	case	NOUN
ajis02-298	269	27	.	.	PUNCT
ajis02-298	270	1	complementary	complementary	ADJ
ajis02-298	270	2	models	model	NOUN
ajis02-298	270	3	.	.	PUNCT
ajis02-298	271	1	in	in	ADP
ajis02-298	271	2	the	the	DET
ajis02-298	271	3	first	first	ADJ
ajis02-298	271	4	case	case	NOUN
ajis02-298	271	5	study	study	NOUN
ajis02-298	271	6	,	,	PUNCT
ajis02-298	271	7	all	all	PRON
ajis02-298	271	8	of	of	ADP
ajis02-298	271	9	ssd	ssd	NOUN
ajis02-298	271	10	's	's	PART
ajis02-298	271	11	requirements	requirement	NOUN
ajis02-298	271	12	have	have	AUX
ajis02-298	271	13	been	be	AUX
ajis02-298	271	14	formally	formally	ADV
ajis02-298	271	15	specified	specify	VERB
ajis02-298	271	16	.	.	PUNCT
ajis02-298	272	1	the	the	DET
ajis02-298	272	2	ifad	ifad	ADJ
ajis02-298	272	3	toolbox	toolbox	NOUN
ajis02-298	272	4	for	for	ADP
ajis02-298	272	5	vdm	vdm	NOUN
ajis02-298	272	6	-	-	PUNCT
ajis02-298	272	7	sl	sl	PROPN
ajis02-298	272	8	has	have	AUX
ajis02-298	272	9	been	be	AUX
ajis02-298	272	10	selected	select	VERB
ajis02-298	272	11	,	,	PUNCT
ajis02-298	272	12	because	because	SCONJ
ajis02-298	272	13	it	it	PRON
ajis02-298	272	14	supports	support	VERB
ajis02-298	272	15	both	both	PRON
ajis02-298	272	16	analysis	analysis	NOUN
ajis02-298	272	17	and	and	CCONJ
ajis02-298	272	18	code	code	NOUN
ajis02-298	272	19	development	development	NOUN
ajis02-298	272	20	.	.	PUNCT
ajis02-298	273	1	ssd	ssd	PROPN
ajis02-298	273	2	's	's	PART
ajis02-298	273	3	vdm	vdm	NOUN
ajis02-298	273	4	specification	specification	NOUN
ajis02-298	273	5	may	may	AUX
ajis02-298	273	6	be	be	AUX
ajis02-298	273	7	used	use	VERB
ajis02-298	273	8	with	with	ADP
ajis02-298	273	9	little	little	ADJ
ajis02-298	273	10	modifications	modification	NOUN
ajis02-298	273	11	to	to	PART
ajis02-298	273	12	automatically	automatically	ADV
ajis02-298	273	13	generate	generate	VERB
ajis02-298	273	14	c++	c++	NOUN
ajis02-298	273	15	code	code	NOUN
ajis02-298	273	16	.	.	PUNCT
ajis02-298	274	1	the	the	DET
ajis02-298	274	2	pvs	pvs	PROPN
ajis02-298	274	3	specification	specification	NOUN
ajis02-298	274	4	developed	develop	VERB
ajis02-298	274	5	in	in	ADP
ajis02-298	274	6	the	the	DET
ajis02-298	274	7	present	present	ADJ
ajis02-298	274	8	case	case	NOUN
ajis02-298	274	9	study	study	NOUN
ajis02-298	274	10	is	be	AUX
ajis02-298	274	11	targeted	target	VERB
ajis02-298	274	12	at	at	ADP
ajis02-298	274	13	analysis	analysis	NOUN
ajis02-298	274	14	only	only	ADV
ajis02-298	274	15	.	.	PUNCT
ajis02-298	275	1	thus	thus	ADV
ajis02-298	275	2	,	,	PUNCT
ajis02-298	275	3	the	the	DET
ajis02-298	275	4	two	two	NUM
ajis02-298	275	5	models	model	NOUN
ajis02-298	275	6	are	be	AUX
ajis02-298	275	7	complementary	complementary	ADJ
ajis02-298	275	8	.	.	PUNCT
ajis02-298	276	1	they	they	PRON
ajis02-298	276	2	not	not	PART
ajis02-298	276	3	only	only	ADV
ajis02-298	276	4	cover	cover	VERB
ajis02-298	276	5	different	different	ADJ
ajis02-298	276	6	parts	part	NOUN
ajis02-298	276	7	of	of	ADP
ajis02-298	276	8	the	the	DET
ajis02-298	276	9	requirements	requirement	NOUN
ajis02-298	276	10	(	(	PUNCT
ajis02-298	276	11	the	the	DET
ajis02-298	276	12	pvs	pvs	PROPN
ajis02-298	276	13	specification	specification	NOUN
ajis02-298	276	14	is	be	AUX
ajis02-298	276	15	only	only	ADV
ajis02-298	276	16	concerned	concerned	ADJ
ajis02-298	276	17	with	with	ADP
ajis02-298	276	18	the	the	DET
ajis02-298	276	19	switches	switch	NOUN
ajis02-298	276	20	part	part	NOUN
ajis02-298	276	21	)	)	PUNCT
ajis02-298	276	22	,	,	PUNCT
ajis02-298	276	23	they	they	PRON
ajis02-298	276	24	are	be	AUX
ajis02-298	276	25	also	also	ADV
ajis02-298	276	26	given	give	VERB
ajis02-298	276	27	in	in	ADP
ajis02-298	276	28	a	a	DET
ajis02-298	276	29	different	different	ADJ
ajis02-298	276	30	manner	manner	NOUN
ajis02-298	276	31	:	:	PUNCT
ajis02-298	276	32	in	in	ADP
ajis02-298	276	33	the	the	DET
ajis02-298	276	34	vdm	vdm	NOUN
ajis02-298	276	35	specification	specification	NOUN
ajis02-298	276	36	,	,	PUNCT
ajis02-298	276	37	events	event	NOUN
ajis02-298	276	38	are	be	AUX
ajis02-298	276	39	modeled	model	VERB
ajis02-298	276	40	by	by	ADP
ajis02-298	276	41	means	mean	NOUN
ajis02-298	276	42	of	of	ADP
ajis02-298	276	43	executable	executable	ADJ
ajis02-298	276	44	functions	function	NOUN
ajis02-298	276	45	.	.	PUNCT
ajis02-298	277	1	the	the	DET
ajis02-298	277	2	pvs	pvs	PROPN
ajis02-298	277	3	specification	specification	NOUN
ajis02-298	277	4	makes	make	VERB
ajis02-298	277	5	use	use	NOUN
ajis02-298	277	6	of	of	ADP
ajis02-298	277	7	axioms	axiom	NOUN
ajis02-298	277	8	.	.	PUNCT
ajis02-298	278	1	those	those	PRON
ajis02-298	278	2	interested	interested	ADJ
ajis02-298	278	3	in	in	ADP
ajis02-298	278	4	the	the	DET
ajis02-298	278	5	details	detail	NOUN
ajis02-298	278	6	of	of	ADP
ajis02-298	278	7	the	the	DET
ajis02-298	278	8	vdm	vdm	NOUN
ajis02-298	278	9	specification	specification	NOUN
ajis02-298	278	10	are	be	AUX
ajis02-298	278	11	asked	ask	VERB
ajis02-298	278	12	to	to	PART
ajis02-298	278	13	refer	refer	VERB
ajis02-298	278	14	to	to	ADP
ajis02-298	278	15	(	(	PUNCT
ajis02-298	278	16	droschl	droschl	NOUN
ajis02-298	278	17	,	,	PUNCT
ajis02-298	278	18	1999d	1999d	NOUN
ajis02-298	278	19	;	;	PUNCT
ajis02-298	278	20	droschl	droschl	NOUN
ajis02-298	278	21	,	,	PUNCT
ajis02-298	278	22	1999b	1999b	NUM
ajis02-298	278	23	)	)	PUNCT
ajis02-298	278	24	.	.	PUNCT
ajis02-298	279	1	the	the	DET
ajis02-298	279	2	(	(	PUNCT
ajis02-298	279	3	non-)duality	non-)duality	NOUN
ajis02-298	279	4	of	of	ADP
ajis02-298	279	5	the	the	DET
ajis02-298	279	6	vdm	vdm	PROPN
ajis02-298	279	7	and	and	CCONJ
ajis02-298	279	8	pvs	pvs	PROPN
ajis02-298	279	9	specifications	specification	NOUN
ajis02-298	279	10	is	be	AUX
ajis02-298	279	11	investigated	investigate	VERB
ajis02-298	279	12	more	more	ADV
ajis02-298	279	13	closely	closely	ADV
ajis02-298	279	14	in	in	ADP
ajis02-298	279	15	(	(	PUNCT
ajis02-298	279	16	droschl	droschl	NOUN
ajis02-298	279	17	,	,	PUNCT
ajis02-298	279	18	1999c	1999c	NUM
ajis02-298	279	19	)	)	PUNCT
ajis02-298	279	20	.	.	PUNCT
ajis02-298	280	1	missing	miss	VERB
ajis02-298	280	2	link	link	NOUN
ajis02-298	280	3	in	in	ADP
ajis02-298	280	4	requirements	requirement	NOUN
ajis02-298	280	5	.	.	PUNCT
ajis02-298	281	1	this	this	DET
ajis02-298	281	2	work	work	NOUN
ajis02-298	281	3	has	have	AUX
ajis02-298	281	4	revealed	reveal	VERB
ajis02-298	281	5	that	that	SCONJ
ajis02-298	281	6	the	the	DET
ajis02-298	281	7	requirements	requirement	NOUN
ajis02-298	281	8	lack	lack	VERB
ajis02-298	281	9	a	a	DET
ajis02-298	281	10	,	,	PUNCT
ajis02-298	281	11	,	,	PUNCT
ajis02-298	281	12	link	link	NOUN
ajis02-298	281	13	"	"	PUNCT
ajis02-298	281	14	between	between	ADP
ajis02-298	281	15	switches	switch	NOUN
ajis02-298	281	16	and	and	CCONJ
ajis02-298	281	17	stations	station	NOUN
ajis02-298	281	18	.	.	PUNCT
ajis02-298	282	1	there	there	PRON
ajis02-298	282	2	is	be	VERB
ajis02-298	282	3	no	no	DET
ajis02-298	282	4	statement	statement	NOUN
ajis02-298	282	5	like	like	ADP
ajis02-298	282	6	the	the	DET
ajis02-298	282	7	following	follow	VERB
ajis02-298	282	8	one	one	NUM
ajis02-298	282	9	:	:	PUNCT
ajis02-298	282	10	when	when	SCONJ
ajis02-298	282	11	the	the	DET
ajis02-298	282	12	guard	guard	NOUN
ajis02-298	282	13	has	have	AUX
ajis02-298	282	14	previously	previously	ADV
ajis02-298	282	15	visited	visit	VERB
ajis02-298	282	16	station	station	NOUN
ajis02-298	282	17	i	i	PRON
ajis02-298	282	18	,	,	PUNCT
ajis02-298	282	19	and	and	CCONJ
ajis02-298	282	20	an	an	DET
ajis02-298	282	21	entry	entry	NOUN
ajis02-298	282	22	switch	switch	NOUN
ajis02-298	282	23	is	be	AUX
ajis02-298	282	24	required	require	VERB
ajis02-298	282	25	such	such	ADJ
ajis02-298	282	26	that	that	SCONJ
ajis02-298	282	27	the	the	DET
ajis02-298	282	28	guard	guard	NOUN
ajis02-298	282	29	may	may	AUX
ajis02-298	282	30	reach	reach	VERB
ajis02-298	282	31	station	station	NOUN
ajis02-298	282	32	i	i	PRON
ajis02-298	282	33	+	+	NOUN
ajis02-298	282	34	1	1	NUM
ajis02-298	282	35	,	,	PUNCT
ajis02-298	282	36	then	then	ADV
ajis02-298	282	37	that	that	DET
ajis02-298	282	38	switch	switch	NOUN
ajis02-298	282	39	shall	shall	AUX
ajis02-298	282	40	be	be	AUX
ajis02-298	282	41	assigned	assign	VERB
ajis02-298	282	42	to	to	PART
ajis02-298	282	43	station	station	VERB
ajis02-298	282	44	i.	i.	PROPN
ajis02-298	282	45	vice	vice	PROPN
ajis02-298	282	46	versa	versa	ADV
ajis02-298	282	47	for	for	ADP
ajis02-298	282	48	exit	exit	NOUN
ajis02-298	282	49	switches	switch	NOUN
ajis02-298	282	50	.	.	PUNCT
ajis02-298	283	1	153	153	NUM
ajis02-298	283	2	clearly	clearly	ADV
ajis02-298	283	3	,	,	PUNCT
ajis02-298	283	4	using	use	VERB
ajis02-298	283	5	such	such	DET
ajis02-298	283	6	an	an	DET
ajis02-298	283	7	assumption	assumption	NOUN
ajis02-298	283	8	in	in	ADP
ajis02-298	283	9	this	this	DET
ajis02-298	283	10	analysis	analysis	NOUN
ajis02-298	283	11	could	could	AUX
ajis02-298	283	12	have	have	AUX
ajis02-298	283	13	lead	lead	VERB
ajis02-298	283	14	to	to	ADP
ajis02-298	283	15	a	a	DET
ajis02-298	283	16	conclusion	conclusion	NOUN
ajis02-298	283	17	meaningless	meaningless	ADJ
ajis02-298	283	18	in	in	ADP
ajis02-298	283	19	practice	practice	NOUN
ajis02-298	283	20	.	.	PUNCT
ajis02-298	284	1	in	in	ADP
ajis02-298	284	2	consequence	consequence	NOUN
ajis02-298	284	3	,	,	PUNCT
ajis02-298	284	4	a	a	DET
ajis02-298	284	5	more	more	ADV
ajis02-298	284	6	relaxed	relaxed	ADJ
ajis02-298	284	7	property	property	NOUN
ajis02-298	284	8	has	have	AUX
ajis02-298	284	9	been	be	AUX
ajis02-298	284	10	used	use	VERB
ajis02-298	284	11	.	.	PUNCT
ajis02-298	285	1	proof	proof	NOUN
ajis02-298	285	2	vs.	vs.	ADP
ajis02-298	285	3	testing	test	VERB
ajis02-298	285	4	the	the	PRON
ajis02-298	285	5	if	if	SCONJ
ajis02-298	285	6	ad	ad	NOUN
ajis02-298	285	7	toolbox	toolbox	NOUN
ajis02-298	285	8	can	can	AUX
ajis02-298	285	9	help	help	VERB
ajis02-298	285	10	to	to	PART
ajis02-298	285	11	analyze	analyze	VERB
ajis02-298	285	12	specifications	specification	NOUN
ajis02-298	285	13	by	by	ADP
ajis02-298	285	14	means	mean	NOUN
ajis02-298	285	15	of	of	ADP
ajis02-298	285	16	animation	animation	NOUN
ajis02-298	285	17	and	and	CCONJ
ajis02-298	285	18	testing	testing	NOUN
ajis02-298	285	19	.	.	PUNCT
ajis02-298	286	1	one	one	NUM
ajis02-298	286	2	possible	possible	ADJ
ajis02-298	286	3	scenario	scenario	NOUN
ajis02-298	286	4	of	of	ADP
ajis02-298	286	5	using	use	VERB
ajis02-298	286	6	testing	testing	NOUN
ajis02-298	286	7	for	for	ADP
ajis02-298	286	8	requirements	requirement	NOUN
ajis02-298	286	9	analysis	analysis	NOUN
ajis02-298	286	10	is	be	AUX
ajis02-298	286	11	the	the	DET
ajis02-298	286	12	following	following	NOUN
ajis02-298	286	13	:	:	PUNCT
ajis02-298	286	14	first	first	ADV
ajis02-298	286	15	,	,	PUNCT
ajis02-298	286	16	identify	identify	VERB
ajis02-298	286	17	the	the	DET
ajis02-298	286	18	properties	property	NOUN
ajis02-298	286	19	to	to	PART
ajis02-298	286	20	be	be	AUX
ajis02-298	286	21	checked	check	VERB
ajis02-298	286	22	.	.	PUNCT
ajis02-298	287	1	then	then	ADV
ajis02-298	287	2	,	,	PUNCT
ajis02-298	287	3	select	select	VERB
ajis02-298	287	4	a	a	DET
ajis02-298	287	5	suitable	suitable	ADJ
ajis02-298	287	6	collection	collection	NOUN
ajis02-298	287	7	of	of	ADP
ajis02-298	287	8	test	test	NOUN
ajis02-298	287	9	cases	case	NOUN
ajis02-298	287	10	for	for	ADP
ajis02-298	287	11	which	which	PRON
ajis02-298	287	12	that	that	DET
ajis02-298	287	13	property	property	NOUN
ajis02-298	287	14	should	should	AUX
ajis02-298	287	15	be	be	AUX
ajis02-298	287	16	checked	check	VERB
ajis02-298	287	17	.	.	PUNCT
ajis02-298	288	1	run	run	VERB
ajis02-298	288	2	the	the	DET
ajis02-298	288	3	test	test	NOUN
ajis02-298	288	4	cases	case	NOUN
ajis02-298	288	5	and	and	CCONJ
ajis02-298	288	6	evaluate	evaluate	VERB
ajis02-298	288	7	the	the	DET
ajis02-298	288	8	properties	property	NOUN
ajis02-298	288	9	.	.	PUNCT
ajis02-298	289	1	in	in	ADP
ajis02-298	289	2	these	these	DET
ajis02-298	289	3	two	two	NUM
ajis02-298	289	4	case	case	NOUN
ajis02-298	289	5	studies	study	NOUN
ajis02-298	289	6	,	,	PUNCT
ajis02-298	289	7	testing	testing	NOUN
ajis02-298	289	8	has	have	AUX
ajis02-298	289	9	turned	turn	VERB
ajis02-298	289	10	out	out	ADP
ajis02-298	289	11	to	to	PART
ajis02-298	289	12	be	be	AUX
ajis02-298	289	13	much	much	ADV
ajis02-298	289	14	easier	easy	ADJ
ajis02-298	289	15	to	to	PART
ajis02-298	289	16	handle	handle	VERB
ajis02-298	289	17	than	than	ADP
ajis02-298	289	18	formal	formal	ADJ
ajis02-298	289	19	proof	proof	NOUN
ajis02-298	289	20	.	.	PUNCT
ajis02-298	290	1	however	however	ADV
ajis02-298	290	2	,	,	PUNCT
ajis02-298	290	3	this	this	PRON
ajis02-298	290	4	has	have	AUX
ajis02-298	290	5	been	be	AUX
ajis02-298	290	6	the	the	DET
ajis02-298	290	7	first	first	ADJ
ajis02-298	290	8	project	project	NOUN
ajis02-298	290	9	where	where	SCONJ
ajis02-298	290	10	the	the	DET
ajis02-298	290	11	author	author	NOUN
ajis02-298	290	12	of	of	ADP
ajis02-298	290	13	this	this	DET
ajis02-298	290	14	paper	paper	NOUN
ajis02-298	290	15	was	be	AUX
ajis02-298	290	16	involved	involve	VERB
ajis02-298	290	17	in	in	ADP
ajis02-298	290	18	testing	testing	NOUN
ajis02-298	290	19	and	and	CCONJ
ajis02-298	290	20	formal	formal	ADJ
ajis02-298	290	21	proof	proof	NOUN
ajis02-298	290	22	of	of	ADP
ajis02-298	290	23	an	an	DET
ajis02-298	290	24	application	application	NOUN
ajis02-298	290	25	of	of	ADP
ajis02-298	290	26	this	this	DET
ajis02-298	290	27	size	size	NOUN
ajis02-298	290	28	.	.	PUNCT
ajis02-298	291	1	what	what	PRON
ajis02-298	291	2	seems	seem	VERB
ajis02-298	291	3	to	to	PART
ajis02-298	291	4	make	make	VERB
ajis02-298	291	5	testing	test	VERB
ajis02-298	291	6	a	a	DET
ajis02-298	291	7	challenge	challenge	NOUN
ajis02-298	291	8	is	be	AUX
ajis02-298	291	9	the	the	DET
ajis02-298	291	10	need	need	NOUN
ajis02-298	291	11	to	to	PART
ajis02-298	291	12	cover	cover	VERB
ajis02-298	291	13	all	all	DET
ajis02-298	291	14	relevant	relevant	ADJ
ajis02-298	291	15	test	test	NOUN
ajis02-298	291	16	cases	case	NOUN
ajis02-298	291	17	.	.	PUNCT
ajis02-298	292	1	in	in	ADP
ajis02-298	292	2	theory	theory	NOUN
ajis02-298	292	3	,	,	PUNCT
ajis02-298	292	4	even	even	ADV
ajis02-298	292	5	if	if	SCONJ
ajis02-298	292	6	just	just	ADV
ajis02-298	292	7	a	a	DET
ajis02-298	292	8	single	single	ADJ
ajis02-298	292	9	test	test	NOUN
ajis02-298	292	10	case	case	NOUN
ajis02-298	292	11	is	be	AUX
ajis02-298	292	12	left	leave	VERB
ajis02-298	292	13	unconsidered	unconsidered	ADJ
ajis02-298	292	14	,	,	PUNCT
ajis02-298	292	15	the	the	DET
ajis02-298	292	16	entire	entire	ADJ
ajis02-298	292	17	result	result	NOUN
ajis02-298	292	18	may	may	AUX
ajis02-298	292	19	turn	turn	VERB
ajis02-298	292	20	out	out	ADP
ajis02-298	292	21	to	to	PART
ajis02-298	292	22	be	be	AUX
ajis02-298	292	23	false	false	ADJ
ajis02-298	292	24	(	(	PUNCT
ajis02-298	292	25	droschl	droschl	NOUN
ajis02-298	292	26	,	,	PUNCT
ajis02-298	292	27	1999b	1999b	NUM
ajis02-298	292	28	)	)	PUNCT
ajis02-298	292	29	.	.	PUNCT
ajis02-298	293	1	as	as	SCONJ
ajis02-298	293	2	already	already	ADV
ajis02-298	293	3	pointed	point	VERB
ajis02-298	293	4	out	out	ADP
ajis02-298	293	5	in	in	ADP
ajis02-298	293	6	the	the	DET
ajis02-298	293	7	first	first	ADJ
ajis02-298	293	8	part	part	NOUN
ajis02-298	293	9	of	of	ADP
ajis02-298	293	10	this	this	DET
ajis02-298	293	11	section	section	NOUN
ajis02-298	293	12	,	,	PUNCT
ajis02-298	293	13	the	the	DET
ajis02-298	293	14	vdm	vdm	NOUN
ajis02-298	293	15	and	and	CCONJ
ajis02-298	293	16	the	the	DET
ajis02-298	293	17	pvs	pvs	PROPN
ajis02-298	293	18	models	model	NOUN
ajis02-298	293	19	are	be	AUX
ajis02-298	293	20	complementary	complementary	ADJ
ajis02-298	293	21	:	:	PUNCT
ajis02-298	293	22	for	for	ADP
ajis02-298	293	23	example	example	NOUN
ajis02-298	293	24	,	,	PUNCT
ajis02-298	293	25	in	in	ADP
ajis02-298	293	26	the	the	DET
ajis02-298	293	27	vdm	vdm	NOUN
ajis02-298	293	28	specification	specification	NOUN
ajis02-298	293	29	events	event	NOUN
ajis02-298	293	30	are	be	AUX
ajis02-298	293	31	modeled	model	VERB
ajis02-298	293	32	by	by	ADP
ajis02-298	293	33	means	mean	NOUN
ajis02-298	293	34	of	of	ADP
ajis02-298	293	35	executable	executable	ADJ
ajis02-298	293	36	functions	function	NOUN
ajis02-298	293	37	.	.	PUNCT
ajis02-298	294	1	in	in	ADP
ajis02-298	294	2	pvs	pvs	PROPN
ajis02-298	294	3	,	,	PUNCT
ajis02-298	294	4	the	the	DET
ajis02-298	294	5	emphasis	emphasis	NOUN
ajis02-298	294	6	has	have	AUX
ajis02-298	294	7	been	be	AUX
ajis02-298	294	8	on	on	ADP
ajis02-298	294	9	analysis	analysis	NOUN
ajis02-298	294	10	aspects	aspect	NOUN
ajis02-298	294	11	.	.	PUNCT
ajis02-298	295	1	thus	thus	ADV
ajis02-298	295	2	,	,	PUNCT
ajis02-298	295	3	non	non	ADJ
ajis02-298	295	4	-	-	ADJ
ajis02-298	295	5	executable	executable	ADJ
ajis02-298	295	6	concepts	concept	NOUN
ajis02-298	295	7	could	could	AUX
ajis02-298	295	8	be	be	AUX
ajis02-298	295	9	used	use	VERB
ajis02-298	295	10	.	.	PUNCT
ajis02-298	296	1	initially	initially	ADV
ajis02-298	296	2	,	,	PUNCT
ajis02-298	296	3	even	even	ADV
ajis02-298	296	4	the	the	DET
ajis02-298	296	5	vdm	vdm	NOUN
ajis02-298	296	6	specification	specification	NOUN
ajis02-298	296	7	has	have	AUX
ajis02-298	296	8	made	make	VERB
ajis02-298	296	9	use	use	NOUN
ajis02-298	296	10	of	of	ADP
ajis02-298	296	11	non	non	ADJ
ajis02-298	296	12	-	-	ADJ
ajis02-298	296	13	executable	executable	ADJ
ajis02-298	296	14	concepts	concept	NOUN
ajis02-298	296	15	:	:	PUNCT
ajis02-298	296	16	some	some	PRON
ajis02-298	296	17	of	of	ADP
ajis02-298	296	18	the	the	DET
ajis02-298	296	19	functions	function	NOUN
ajis02-298	296	20	have	have	AUX
ajis02-298	296	21	been	be	AUX
ajis02-298	296	22	defined	define	VERB
ajis02-298	296	23	by	by	ADP
ajis02-298	296	24	means	mean	NOUN
ajis02-298	296	25	of	of	ADP
ajis02-298	296	26	preand	preand	NOUN
ajis02-298	296	27	post	post	NOUN
ajis02-298	296	28	conditions	condition	NOUN
ajis02-298	296	29	.	.	PUNCT
ajis02-298	297	1	however	however	ADV
ajis02-298	297	2	,	,	PUNCT
ajis02-298	297	3	these	these	DET
ajis02-298	297	4	implicit	implicit	ADJ
ajis02-298	297	5	functions	function	NOUN
ajis02-298	297	6	have	have	AUX
ajis02-298	297	7	subsequently	subsequently	ADV
ajis02-298	297	8	been	be	AUX
ajis02-298	297	9	complemented	complement	VERB
ajis02-298	297	10	by	by	ADP
ajis02-298	297	11	their	their	PRON
ajis02-298	297	12	explicit	explicit	ADJ
ajis02-298	297	13	counterparts	counterpart	NOUN
ajis02-298	297	14	.	.	PUNCT
ajis02-298	298	1	in	in	ADP
ajis02-298	298	2	general	general	ADJ
ajis02-298	298	3	,	,	PUNCT
ajis02-298	298	4	it	it	PRON
ajis02-298	298	5	is	be	AUX
ajis02-298	298	6	easier	easy	ADJ
ajis02-298	298	7	to	to	PART
ajis02-298	298	8	develop	develop	VERB
ajis02-298	298	9	an	an	DET
ajis02-298	298	10	executable	executable	ADJ
ajis02-298	298	11	model	model	NOUN
ajis02-298	298	12	from	from	ADP
ajis02-298	298	13	a	a	DET
ajis02-298	298	14	collection	collection	NOUN
ajis02-298	298	15	of	of	ADP
ajis02-298	298	16	implicit	implicit	ADJ
ajis02-298	298	17	function	function	NOUN
ajis02-298	298	18	definitions	definition	NOUN
ajis02-298	298	19	,	,	PUNCT
ajis02-298	298	20	than	than	ADP
ajis02-298	298	21	from	from	ADP
ajis02-298	298	22	a	a	DET
ajis02-298	298	23	specification	specification	NOUN
ajis02-298	298	24	with	with	ADP
ajis02-298	298	25	lots	lot	NOUN
ajis02-298	298	26	of	of	ADP
ajis02-298	298	27	axioms	axiom	NOUN
ajis02-298	298	28	.	.	PUNCT
ajis02-298	299	1	in	in	ADP
ajis02-298	299	2	a	a	DET
ajis02-298	299	3	situation	situation	NOUN
ajis02-298	299	4	,	,	PUNCT
ajis02-298	299	5	where	where	SCONJ
ajis02-298	299	6	a	a	DET
ajis02-298	299	7	major	major	ADJ
ajis02-298	299	8	body	body	NOUN
ajis02-298	299	9	of	of	ADP
ajis02-298	299	10	knowledge	knowledge	NOUN
ajis02-298	299	11	exists	exist	VERB
ajis02-298	299	12	in	in	ADP
ajis02-298	299	13	vdm	vdm	PROPN
ajis02-298	299	14	(	(	PUNCT
ajis02-298	299	15	the	the	DET
ajis02-298	299	16	pure	pure	ADJ
ajis02-298	299	17	vdm	vdm	NOUN
ajis02-298	299	18	specification	specification	NOUN
ajis02-298	299	19	without	without	ADP
ajis02-298	299	20	comments	comment	NOUN
ajis02-298	299	21	is	be	AUX
ajis02-298	299	22	about	about	ADV
ajis02-298	299	23	30	30	NUM
ajis02-298	299	24	a4	a4	NOUN
ajis02-298	299	25	pages	page	NOUN
ajis02-298	299	26	long	long	ADJ
ajis02-298	299	27	)	)	PUNCT
ajis02-298	299	28	,	,	PUNCT
ajis02-298	299	29	there	there	PRON
ajis02-298	299	30	are	be	VERB
ajis02-298	299	31	two	two	NUM
ajis02-298	299	32	main	main	ADJ
ajis02-298	299	33	arguments	argument	NOUN
ajis02-298	299	34	for	for	ADP
ajis02-298	299	35	performing	perform	VERB
ajis02-298	299	36	an	an	DET
ajis02-298	299	37	analysis	analysis	NOUN
ajis02-298	299	38	in	in	ADP
ajis02-298	299	39	the	the	DET
ajis02-298	299	40	ifad	ifad	ADJ
ajis02-298	299	41	framework	framework	NOUN
ajis02-298	299	42	:	:	PUNCT
ajis02-298	299	43	first	first	ADV
ajis02-298	299	44	,	,	PUNCT
ajis02-298	299	45	there	there	PRON
ajis02-298	299	46	is	be	VERB
ajis02-298	299	47	no	no	DET
ajis02-298	299	48	need	need	NOUN
ajis02-298	299	49	for	for	ADP
ajis02-298	299	50	developing	develop	VERB
ajis02-298	299	51	a	a	DET
ajis02-298	299	52	new	new	ADJ
ajis02-298	299	53	specification	specification	NOUN
ajis02-298	299	54	in	in	ADP
ajis02-298	299	55	an	an	DET
ajis02-298	299	56	alternative	alternative	ADJ
ajis02-298	299	57	environment	environment	NOUN
ajis02-298	299	58	.	.	PUNCT
ajis02-298	300	1	this	this	PRON
ajis02-298	300	2	could	could	AUX
ajis02-298	300	3	result	result	VERB
ajis02-298	300	4	in	in	ADP
ajis02-298	300	5	a	a	DET
ajis02-298	300	6	major	major	ADJ
ajis02-298	300	7	effort	effort	NOUN
ajis02-298	300	8	,	,	PUNCT
ajis02-298	300	9	partly	partly	ADV
ajis02-298	300	10	due	due	ADJ
ajis02-298	300	11	to	to	ADP
ajis02-298	300	12	differences	difference	NOUN
ajis02-298	300	13	in	in	ADP
ajis02-298	300	14	the	the	DET
ajis02-298	300	15	logics	logic	NOUN
ajis02-298	300	16	.	.	PUNCT
ajis02-298	301	1	even	even	ADV
ajis02-298	301	2	though	though	SCONJ
ajis02-298	301	3	there	there	PRON
ajis02-298	301	4	are	be	VERB
ajis02-298	301	5	efforts	effort	NOUN
ajis02-298	301	6	to	to	PART
ajis02-298	301	7	extending	extend	VERB
ajis02-298	301	8	the	the	DET
ajis02-298	301	9	ifad	ifad	ADJ
ajis02-298	301	10	toolbox	toolbox	NOUN
ajis02-298	301	11	with	with	ADP
ajis02-298	301	12	a	a	DET
ajis02-298	301	13	prover	prover	NOUN
ajis02-298	301	14	(	(	PUNCT
ajis02-298	301	15	see	see	VERB
ajis02-298	301	16	for	for	ADP
ajis02-298	301	17	example	example	NOUN
ajis02-298	301	18	(	(	PUNCT
ajis02-298	301	19	agerholm	agerholm	NOUN
ajis02-298	301	20	and	and	CCONJ
ajis02-298	301	21	frost	frost	NOUN
ajis02-298	301	22	,	,	PUNCT
ajis02-298	301	23	1997	1997	NUM
ajis02-298	301	24	)	)	PUNCT
ajis02-298	301	25	)	)	PUNCT
ajis02-298	301	26	,	,	PUNCT
ajis02-298	301	27	at	at	ADP
ajis02-298	301	28	present	present	ADJ
ajis02-298	301	29	,	,	PUNCT
ajis02-298	301	30	there	there	PRON
ajis02-298	301	31	is	be	VERB
ajis02-298	301	32	no	no	DET
ajis02-298	301	33	such	such	ADJ
ajis02-298	301	34	feature	feature	NOUN
ajis02-298	301	35	.	.	PUNCT
ajis02-298	302	1	second	second	ADJ
ajis02-298	302	2	,	,	PUNCT
ajis02-298	302	3	a	a	DET
ajis02-298	302	4	developer	developer	NOUN
ajis02-298	302	5	is	be	AUX
ajis02-298	302	6	believed	believe	VERB
ajis02-298	302	7	to	to	PART
ajis02-298	302	8	be	be	AUX
ajis02-298	302	9	able	able	ADJ
ajis02-298	302	10	to	to	PART
ajis02-298	302	11	get	get	VERB
ajis02-298	302	12	started	start	VERB
ajis02-298	302	13	testing	test	VERB
ajis02-298	302	14	a	a	DET
ajis02-298	302	15	specification	specification	NOUN
ajis02-298	302	16	in	in	ADP
ajis02-298	302	17	a	a	DET
ajis02-298	302	18	reasonable	reasonable	ADJ
ajis02-298	302	19	time	time	NOUN
ajis02-298	302	20	.	.	PUNCT
ajis02-298	303	1	even	even	ADV
ajis02-298	303	2	though	though	SCONJ
ajis02-298	303	3	the	the	DET
ajis02-298	303	4	application	application	NOUN
ajis02-298	303	5	of	of	ADP
ajis02-298	303	6	single	single	ADJ
ajis02-298	303	7	test	test	NOUN
ajis02-298	303	8	cases	case	NOUN
ajis02-298	303	9	may	may	AUX
ajis02-298	303	10	be	be	AUX
ajis02-298	303	11	straightforward	straightforward	ADJ
ajis02-298	303	12	and	and	CCONJ
ajis02-298	303	13	insightful	insightful	ADJ
ajis02-298	303	14	,	,	PUNCT
ajis02-298	303	15	their	their	PRON
ajis02-298	303	16	choice	choice	NOUN
ajis02-298	303	17	remains	remain	VERB
ajis02-298	303	18	the	the	DET
ajis02-298	303	19	critical	critical	ADJ
ajis02-298	303	20	step	step	NOUN
ajis02-298	303	21	.	.	PUNCT
ajis02-298	304	1	in	in	ADP
ajis02-298	304	2	the	the	DET
ajis02-298	304	3	first	first	ADJ
ajis02-298	304	4	case	case	NOUN
ajis02-298	304	5	study	study	NOUN
ajis02-298	304	6	,	,	PUNCT
ajis02-298	304	7	a	a	DET
ajis02-298	304	8	test	test	NOUN
ajis02-298	304	9	case	case	NOUN
ajis02-298	304	10	has	have	AUX
ajis02-298	304	11	been	be	AUX
ajis02-298	304	12	identified	identify	VERB
ajis02-298	304	13	indicating	indicate	VERB
ajis02-298	304	14	the	the	DET
ajis02-298	304	15	presence	presence	NOUN
ajis02-298	304	16	of	of	ADP
ajis02-298	304	17	contradictions	contradiction	NOUN
ajis02-298	304	18	in	in	ADP
ajis02-298	304	19	the	the	DET
ajis02-298	304	20	requirements	requirement	NOUN
ajis02-298	304	21	.	.	PUNCT
ajis02-298	305	1	in	in	ADP
ajis02-298	305	2	order	order	NOUN
ajis02-298	305	3	to	to	PART
ajis02-298	305	4	achieve	achieve	VERB
ajis02-298	305	5	a	a	DET
ajis02-298	305	6	more	more	ADV
ajis02-298	305	7	thorough	thorough	ADJ
ajis02-298	305	8	understanding	understanding	NOUN
ajis02-298	305	9	of	of	ADP
ajis02-298	305	10	these	these	DET
ajis02-298	305	11	contradictions	contradiction	NOUN
ajis02-298	305	12	,	,	PUNCT
ajis02-298	305	13	an	an	DET
ajis02-298	305	14	alternative	alternative	ADJ
ajis02-298	305	15	analysis	analysis	NOUN
ajis02-298	305	16	approach	approach	NOUN
ajis02-298	305	17	had	have	VERB
ajis02-298	305	18	to	to	PART
ajis02-298	305	19	be	be	AUX
ajis02-298	305	20	found	find	VERB
ajis02-298	305	21	.	.	PUNCT
ajis02-298	306	1	parts	part	NOUN
ajis02-298	306	2	of	of	ADP
ajis02-298	306	3	the	the	DET
ajis02-298	306	4	requirements	requirement	NOUN
ajis02-298	306	5	have	have	AUX
ajis02-298	306	6	been	be	AUX
ajis02-298	306	7	re	re	VERB
ajis02-298	306	8	-	-	VERB
ajis02-298	306	9	formalized	formalize	VERB
ajis02-298	306	10	in	in	ADP
ajis02-298	306	11	the	the	DET
ajis02-298	306	12	pvs	pvs	PROPN
ajis02-298	306	13	environment	environment	NOUN
ajis02-298	306	14	.	.	PUNCT
ajis02-298	307	1	even	even	ADV
ajis02-298	307	2	though	though	SCONJ
ajis02-298	307	3	it	it	PRON
ajis02-298	307	4	has	have	AUX
ajis02-298	307	5	been	be	AUX
ajis02-298	307	6	shown	show	VERB
ajis02-298	307	7	how	how	SCONJ
ajis02-298	307	8	a	a	DET
ajis02-298	307	9	vdm	vdm	NOUN
ajis02-298	307	10	-	-	PUNCT
ajis02-298	307	11	sl	sl	NOUN
ajis02-298	307	12	specification	specification	NOUN
ajis02-298	307	13	can	can	AUX
ajis02-298	307	14	be	be	AUX
ajis02-298	307	15	turned	turn	VERB
ajis02-298	307	16	into	into	ADP
ajis02-298	307	17	its	its	PRON
ajis02-298	307	18	pvs	pvs	PROPN
ajis02-298	307	19	counterpart	counterpart	NOUN
ajis02-298	307	20	(	(	PUNCT
ajis02-298	307	21	agerholm	agerholm	NOUN
ajis02-298	307	22	,	,	PUNCT
ajis02-298	307	23	1996	1996	NUM
ajis02-298	307	24	)	)	PUNCT
ajis02-298	307	25	,	,	PUNCT
ajis02-298	307	26	the	the	DET
ajis02-298	307	27	original	original	ADJ
ajis02-298	307	28	requirements	requirement	NOUN
ajis02-298	307	29	have	have	AUX
ajis02-298	307	30	been	be	AUX
ajis02-298	307	31	used	use	VERB
ajis02-298	307	32	as	as	ADP
ajis02-298	307	33	the	the	DET
ajis02-298	307	34	basis	basis	NOUN
ajis02-298	307	35	for	for	ADP
ajis02-298	307	36	formalization	formalization	NOUN
ajis02-298	307	37	:	:	PUNCT
ajis02-298	307	38	first	first	ADJ
ajis02-298	307	39	,	,	PUNCT
ajis02-298	307	40	only	only	ADJ
ajis02-298	307	41	parts	part	NOUN
ajis02-298	307	42	of	of	ADP
ajis02-298	307	43	the	the	DET
ajis02-298	307	44	requirements	requirement	NOUN
ajis02-298	307	45	had	have	VERB
ajis02-298	307	46	to	to	PART
ajis02-298	307	47	be	be	AUX
ajis02-298	307	48	formalized	formalize	VERB
ajis02-298	307	49	in	in	ADP
ajis02-298	307	50	pvs	pvs	PROPN
ajis02-298	307	51	.	.	PUNCT
ajis02-298	308	1	second	second	ADV
ajis02-298	308	2	,	,	PUNCT
ajis02-298	308	3	the	the	DET
ajis02-298	308	4	structure	structure	NOUN
ajis02-298	308	5	of	of	ADP
ajis02-298	308	6	the	the	DET
ajis02-298	308	7	vdm	vdm	NOUN
ajis02-298	308	8	specification	specification	NOUN
ajis02-298	308	9	is	be	AUX
ajis02-298	308	10	targeted	target	VERB
ajis02-298	308	11	at	at	ADP
ajis02-298	308	12	making	make	VERB
ajis02-298	308	13	the	the	DET
ajis02-298	308	14	specification	specification	NOUN
ajis02-298	308	15	executable	executable	ADJ
ajis02-298	308	16	.	.	PUNCT
ajis02-298	309	1	this	this	PRON
ajis02-298	309	2	was	be	AUX
ajis02-298	309	3	in	in	ADP
ajis02-298	309	4	contrast	contrast	NOUN
ajis02-298	309	5	to	to	ADP
ajis02-298	309	6	the	the	DET
ajis02-298	309	7	aims	aim	NOUN
ajis02-298	309	8	of	of	ADP
ajis02-298	309	9	the	the	DET
ajis02-298	309	10	pvs	pvs	PROPN
ajis02-298	309	11	specification	specification	NOUN
ajis02-298	309	12	.	.	PUNCT
ajis02-298	310	1	third	third	ADJ
ajis02-298	310	2	,	,	PUNCT
ajis02-298	310	3	the	the	DET
ajis02-298	310	4	construction	construction	NOUN
ajis02-298	310	5	of	of	ADP
ajis02-298	310	6	a	a	DET
ajis02-298	310	7	"	"	PUNCT
ajis02-298	310	8	fresh	fresh	ADJ
ajis02-298	310	9	"	"	PUNCT
ajis02-298	310	10	specification	specification	NOUN
ajis02-298	310	11	out	out	ADP
ajis02-298	310	12	of	of	ADP
ajis02-298	310	13	the	the	DET
ajis02-298	310	14	original	original	ADJ
ajis02-298	310	15	requirements	requirement	NOUN
ajis02-298	310	16	was	be	AUX
ajis02-298	310	17	believed	believe	VERB
ajis02-298	310	18	to	to	PART
ajis02-298	310	19	lead	lead	VERB
ajis02-298	310	20	to	to	ADP
ajis02-298	310	21	good	good	ADJ
ajis02-298	310	22	structure	structure	NOUN
ajis02-298	310	23	.	.	PUNCT
ajis02-298	311	1	there	there	PRON
ajis02-298	311	2	are	be	VERB
ajis02-298	311	3	a	a	DET
ajis02-298	311	4	variety	variety	NOUN
ajis02-298	311	5	of	of	ADP
ajis02-298	311	6	formal	formal	ADJ
ajis02-298	311	7	methods	method	NOUN
ajis02-298	311	8	tools	tool	NOUN
ajis02-298	311	9	.	.	PUNCT
ajis02-298	312	1	most	most	ADJ
ajis02-298	312	2	of	of	ADP
ajis02-298	312	3	them	they	PRON
ajis02-298	312	4	have	have	VERB
ajis02-298	312	5	their	their	PRON
ajis02-298	312	6	own	own	ADJ
ajis02-298	312	7	specification	specification	NOUN
ajis02-298	312	8	languages	language	NOUN
ajis02-298	312	9	,	,	PUNCT
ajis02-298	312	10	incompatible	incompatible	ADJ
ajis02-298	312	11	with	with	ADP
ajis02-298	312	12	other	other	ADJ
ajis02-298	312	13	languages	language	NOUN
ajis02-298	312	14	.	.	PUNCT
ajis02-298	313	1	at	at	ADP
ajis02-298	313	2	best	well	ADV
ajis02-298	313	3	,	,	PUNCT
ajis02-298	313	4	there	there	PRON
ajis02-298	313	5	are	be	VERB
ajis02-298	313	6	syntactic	syntactic	ADJ
ajis02-298	313	7	differences	difference	NOUN
ajis02-298	313	8	only	only	ADV
ajis02-298	313	9	.	.	PUNCT
ajis02-298	314	1	however	however	ADV
ajis02-298	314	2	,	,	PUNCT
ajis02-298	314	3	this	this	PRON
ajis02-298	314	4	is	be	AUX
ajis02-298	314	5	rarely	rarely	ADV
ajis02-298	314	6	the	the	DET
ajis02-298	314	7	case	case	NOUN
ajis02-298	314	8	.	.	PUNCT
ajis02-298	315	1	current	current	ADJ
ajis02-298	315	2	attempts	attempt	NOUN
ajis02-298	315	3	of	of	ADP
ajis02-298	315	4	integrating	integrate	VERB
ajis02-298	315	5	formalisms	formalism	NOUN
ajis02-298	315	6	(	(	PUNCT
ajis02-298	315	7	ambriola	ambriola	PROPN
ajis02-298	315	8	et	et	PROPN
ajis02-298	315	9	al	al	PROPN
ajis02-298	315	10	.	.	PROPN
ajis02-298	315	11	,	,	PUNCT
ajis02-298	315	12	1997	1997	NUM
ajis02-298	315	13	;	;	PUNCT
ajis02-298	315	14	kramer	kramer	PROPN
ajis02-298	315	15	et	et	PROPN
ajis02-298	315	16	al	al	PROPN
ajis02-298	315	17	.	.	PROPN
ajis02-298	315	18	,	,	PUNCT
ajis02-298	315	19	1996	1996	NUM
ajis02-298	315	20	)	)	PUNCT
ajis02-298	315	21	indicate	indicate	VERB
ajis02-298	315	22	that	that	SCONJ
ajis02-298	315	23	the	the	DET
ajis02-298	315	24	transition	transition	NOUN
ajis02-298	315	25	from	from	ADP
ajis02-298	315	26	one	one	NUM
ajis02-298	315	27	formalism	formalism	NOUN
ajis02-298	315	28	to	to	ADP
ajis02-298	315	29	another	another	PRON
ajis02-298	315	30	is	be	AUX
ajis02-298	315	31	a	a	DET
ajis02-298	315	32	key	key	ADJ
ajis02-298	315	33	element	element	NOUN
ajis02-298	315	34	to	to	ADP
ajis02-298	315	35	the	the	DET
ajis02-298	315	36	efficient	efficient	ADJ
ajis02-298	315	37	application	application	NOUN
ajis02-298	315	38	of	of	ADP
ajis02-298	315	39	formal	formal	ADJ
ajis02-298	315	40	methods	method	NOUN
ajis02-298	315	41	.	.	PUNCT
ajis02-298	316	1	this	this	PRON
ajis02-298	316	2	has	have	AUX
ajis02-298	316	3	also	also	ADV
ajis02-298	316	4	been	be	AUX
ajis02-298	316	5	observed	observe	VERB
ajis02-298	316	6	as	as	ADP
ajis02-298	316	7	part	part	NOUN
ajis02-298	316	8	of	of	ADP
ajis02-298	316	9	our	our	PRON
ajis02-298	316	10	work	work	NOUN
ajis02-298	316	11	(	(	PUNCT
ajis02-298	316	12	droschl	droschl	NOUN
ajis02-298	316	13	,	,	PUNCT
ajis02-298	316	14	1999c	1999c	NUM
ajis02-298	316	15	)	)	PUNCT
ajis02-298	316	16	.	.	PUNCT
ajis02-298	317	1	in	in	ADP
ajis02-298	317	2	principle	principle	NOUN
ajis02-298	317	3	,	,	PUNCT
ajis02-298	317	4	using	use	VERB
ajis02-298	317	5	pvs	pvs	PROPN
ajis02-298	317	6	for	for	ADP
ajis02-298	317	7	requirements	requirement	NOUN
ajis02-298	317	8	analysis	analysis	NOUN
ajis02-298	317	9	seems	seem	VERB
ajis02-298	317	10	to	to	PART
ajis02-298	317	11	be	be	AUX
ajis02-298	317	12	a	a	DET
ajis02-298	317	13	promising	promising	ADJ
ajis02-298	317	14	approach	approach	NOUN
ajis02-298	317	15	.	.	PUNCT
ajis02-298	318	1	theorems	theorem	NOUN
ajis02-298	318	2	can	can	AUX
ajis02-298	318	3	be	be	AUX
ajis02-298	318	4	used	use	VERB
ajis02-298	318	5	to	to	PART
ajis02-298	318	6	express	express	VERB
ajis02-298	318	7	arbitrarily	arbitrarily	ADV
ajis02-298	318	8	general	general	ADJ
ajis02-298	318	9	/	/	SYM
ajis02-298	318	10	abstract	abstract	ADJ
ajis02-298	318	11	properties	property	NOUN
ajis02-298	318	12	.	.	PUNCT
ajis02-298	319	1	in	in	ADP
ajis02-298	319	2	contrast	contrast	NOUN
ajis02-298	319	3	,	,	PUNCT
ajis02-298	319	4	single	single	ADJ
ajis02-298	319	5	test	test	NOUN
ajis02-298	319	6	cases	case	NOUN
ajis02-298	319	7	cover	cover	VERB
ajis02-298	319	8	some	some	DET
ajis02-298	319	9	very	very	ADV
ajis02-298	319	10	restricted	restricted	ADJ
ajis02-298	319	11	aspect	aspect	NOUN
ajis02-298	319	12	only	only	ADV
ajis02-298	319	13	.	.	PUNCT
ajis02-298	320	1	however	however	ADV
ajis02-298	320	2	,	,	PUNCT
ajis02-298	320	3	the	the	DET
ajis02-298	320	4	(	(	PUNCT
ajis02-298	320	5	potential	potential	ADJ
ajis02-298	320	6	)	)	PUNCT
ajis02-298	320	7	user	user	NOUN
ajis02-298	320	8	of	of	ADP
ajis02-298	320	9	pvs	pvs	PROPN
ajis02-298	320	10	may	may	AUX
ajis02-298	320	11	face	face	VERB
ajis02-298	320	12	substantial	substantial	ADJ
ajis02-298	320	13	obstacles	obstacle	NOUN
ajis02-298	320	14	.	.	PUNCT
ajis02-298	321	1	for	for	ADP
ajis02-298	321	2	example	example	NOUN
ajis02-298	321	3	,	,	PUNCT
ajis02-298	321	4	pvs	pvs	PROPN
ajis02-298	321	5	has	have	AUX
ajis02-298	321	6	shown	show	VERB
ajis02-298	321	7	to	to	PART
ajis02-298	321	8	require	require	VERB
ajis02-298	321	9	a	a	DET
ajis02-298	321	10	significantly	significantly	ADV
ajis02-298	321	11	longer	long	ADV
ajis02-298	321	12	start	start	VERB
ajis02-298	321	13	up	up	ADP
ajis02-298	321	14	time	time	NOUN
ajis02-298	321	15	than	than	ADP
ajis02-298	321	16	testing	test	VERB
ajis02-298	321	17	.	.	PUNCT
ajis02-298	322	1	also	also	ADV
ajis02-298	322	2	,	,	PUNCT
ajis02-298	322	3	proof	proof	NOUN
ajis02-298	322	4	attempts	attempt	NOUN
ajis02-298	322	5	can	can	AUX
ajis02-298	322	6	get	get	VERB
ajis02-298	322	7	quite	quite	ADV
ajis02-298	322	8	challenging	challenging	ADJ
ajis02-298	322	9	from	from	ADP
ajis02-298	322	10	a	a	DET
ajis02-298	322	11	technical	technical	ADJ
ajis02-298	322	12	perspective	perspective	NOUN
ajis02-298	322	13	.	.	PUNCT
ajis02-298	323	1	on	on	ADP
ajis02-298	323	2	the	the	DET
ajis02-298	323	3	one	one	NUM
ajis02-298	323	4	hand	hand	NOUN
ajis02-298	323	5	,	,	PUNCT
ajis02-298	323	6	pvs	pvs	PROPN
ajis02-298	323	7	supports	support	VERB
ajis02-298	323	8	a	a	DET
ajis02-298	323	9	variety	variety	NOUN
ajis02-298	323	10	of	of	ADP
ajis02-298	323	11	different	different	ADJ
ajis02-298	323	12	types	type	NOUN
ajis02-298	323	13	of	of	ADP
ajis02-298	323	14	proofs	proof	NOUN
ajis02-298	323	15	.	.	PUNCT
ajis02-298	324	1	on	on	ADP
ajis02-298	324	2	the	the	DET
ajis02-298	324	3	other	other	ADJ
ajis02-298	324	4	,	,	PUNCT
ajis02-298	324	5	this	this	PRON
ajis02-298	324	6	results	result	VERB
ajis02-298	324	7	in	in	ADP
ajis02-298	324	8	a	a	DET
ajis02-298	324	9	many	many	ADJ
ajis02-298	324	10	prover	prover	NOUN
ajis02-298	324	11	commands	command	NOUN
ajis02-298	324	12	and	and	CCONJ
ajis02-298	324	13	a	a	DET
ajis02-298	324	14	confusing	confusing	ADJ
ajis02-298	324	15	user	user	NOUN
ajis02-298	324	16	interface	interface	NOUN
ajis02-298	324	17	.	.	PUNCT
ajis02-298	325	1	the	the	DET
ajis02-298	325	2	need	need	NOUN
ajis02-298	325	3	for	for	ADP
ajis02-298	325	4	a	a	DET
ajis02-298	325	5	practical	practical	ADJ
ajis02-298	325	6	user	user	NOUN
ajis02-298	325	7	interface	interface	NOUN
ajis02-298	325	8	in	in	ADP
ajis02-298	325	9	formal	formal	ADJ
ajis02-298	325	10	methods	method	NOUN
ajis02-298	325	11	has	have	AUX
ajis02-298	325	12	been	be	AUX
ajis02-298	325	13	recognized	recognize	VERB
ajis02-298	325	14	before	before	ADV
ajis02-298	325	15	(	(	PUNCT
ajis02-298	325	16	heitmeyer	heitmeyer	NOUN
ajis02-298	325	17	,	,	PUNCT
ajis02-298	325	18	1998	1998	NUM
ajis02-298	325	19	)	)	PUNCT
ajis02-298	325	20	.	.	PUNCT
ajis02-298	326	1	154	154	NUM
ajis02-298	326	2	figure	figure	NOUN
ajis02-298	326	3	1	1	NUM
ajis02-298	326	4	summarized	summarize	VERB
ajis02-298	326	5	the	the	DET
ajis02-298	326	6	main	main	ADJ
ajis02-298	326	7	findings	finding	NOUN
ajis02-298	326	8	of	of	ADP
ajis02-298	326	9	the	the	DET
ajis02-298	326	10	vdm	vdm	NOUN
ajis02-298	326	11	analysis	analysis	NOUN
ajis02-298	326	12	.	.	PUNCT
ajis02-298	327	1	in	in	ADP
ajis02-298	327	2	fig	fig	NOUN
ajis02-298	327	3	.	.	PUNCT
ajis02-298	328	1	6	6	NUM
ajis02-298	328	2	the	the	DET
ajis02-298	328	3	results	result	NOUN
ajis02-298	328	4	of	of	ADP
ajis02-298	328	5	this	this	DET
ajis02-298	328	6	analysis	analysis	NOUN
ajis02-298	328	7	using	use	VERB
ajis02-298	328	8	pvs	pvs	PROPN
ajis02-298	328	9	are	be	AUX
ajis02-298	328	10	given	give	VERB
ajis02-298	328	11	.	.	PUNCT
ajis02-298	329	1	assets	asset	NOUN
ajis02-298	329	2	formal	formal	ADJ
ajis02-298	329	3	proof	proof	NOUN
ajis02-298	329	4	has	have	AUX
ajis02-298	329	5	shown	show	VERB
ajis02-298	329	6	to	to	PART
ajis02-298	329	7	lead	lead	VERB
ajis02-298	329	8	to	to	ADP
ajis02-298	329	9	a	a	DET
ajis02-298	329	10	better	well	ADJ
ajis02-298	329	11	understanding	understanding	NOUN
ajis02-298	329	12	of	of	ADP
ajis02-298	329	13	the	the	DET
ajis02-298	329	14	requirements	requirement	NOUN
ajis02-298	329	15	than	than	ADP
ajis02-298	329	16	testing	test	VERB
ajis02-298	329	17	.	.	PUNCT
ajis02-298	330	1	proof	proof	NOUN
ajis02-298	330	2	is	be	AUX
ajis02-298	330	3	flexible	flexible	ADJ
ajis02-298	330	4	level	level	NOUN
ajis02-298	330	5	of	of	ADP
ajis02-298	330	6	generality	generality	NOUN
ajis02-298	330	7	of	of	ADP
ajis02-298	330	8	axioms	axiom	NOUN
ajis02-298	330	9	can	can	AUX
ajis02-298	330	10	be	be	AUX
ajis02-298	330	11	chosen	choose	VERB
ajis02-298	330	12	by	by	ADP
ajis02-298	330	13	the	the	DET
ajis02-298	330	14	user	user	NOUN
ajis02-298	330	15	.	.	PUNCT
ajis02-298	331	1	the	the	DET
ajis02-298	331	2	act	act	NOUN
ajis02-298	331	3	of	of	ADP
ajis02-298	331	4	thinking	think	VERB
ajis02-298	331	5	about	about	ADP
ajis02-298	331	6	and	and	CCONJ
ajis02-298	331	7	of	of	ADP
ajis02-298	331	8	writing	write	VERB
ajis02-298	331	9	down	down	ADP
ajis02-298	331	10	properties	property	NOUN
ajis02-298	331	11	may	may	AUX
ajis02-298	331	12	yield	yield	VERB
ajis02-298	331	13	important	important	ADJ
ajis02-298	331	14	insights	insight	NOUN
ajis02-298	331	15	.	.	PUNCT
ajis02-298	332	1	liabilities	liability	NOUN
ajis02-298	332	2	proof	proof	NOUN
ajis02-298	332	3	is	be	AUX
ajis02-298	332	4	more	more	ADV
ajis02-298	332	5	difficult	difficult	ADJ
ajis02-298	332	6	than	than	ADP
ajis02-298	332	7	testing	test	VERB
ajis02-298	332	8	.	.	PUNCT
ajis02-298	333	1	concrete	concrete	ADJ
ajis02-298	333	2	form	form	NOUN
ajis02-298	333	3	of	of	ADP
ajis02-298	333	4	specification	specification	NOUN
ajis02-298	333	5	may	may	AUX
ajis02-298	333	6	have	have	VERB
ajis02-298	333	7	a	a	DET
ajis02-298	333	8	major	major	ADJ
ajis02-298	333	9	impact	impact	NOUN
ajis02-298	333	10	on	on	ADP
ajis02-298	333	11	the	the	DET
ajis02-298	333	12	success	success	NOUN
ajis02-298	333	13	of	of	ADP
ajis02-298	333	14	proof	proof	NOUN
ajis02-298	333	15	.	.	PUNCT
ajis02-298	334	1	the	the	DET
ajis02-298	334	2	pvs	pvs	PROPN
ajis02-298	334	3	user	user	PROPN
ajis02-298	334	4	interface	interface	NOUN
ajis02-298	334	5	suffers	suffer	VERB
ajis02-298	334	6	from	from	ADP
ajis02-298	334	7	a	a	DET
ajis02-298	334	8	large	large	ADJ
ajis02-298	334	9	variety	variety	NOUN
ajis02-298	334	10	of	of	ADP
ajis02-298	334	11	commands	command	NOUN
ajis02-298	334	12	.	.	PUNCT
ajis02-298	335	1	re	re	VERB
ajis02-298	335	2	-	-	NOUN
ajis02-298	335	3	formalization	formalization	NOUN
ajis02-298	335	4	may	may	AUX
ajis02-298	335	5	result	result	VERB
ajis02-298	335	6	in	in	ADP
ajis02-298	335	7	a	a	DET
ajis02-298	335	8	significant	significant	ADJ
ajis02-298	335	9	effort	effort	NOUN
ajis02-298	335	10	.	.	PUNCT
ajis02-298	336	1	figure	figure	VERB
ajis02-298	336	2	6	6	NUM
ajis02-298	336	3	:	:	PUNCT
ajis02-298	336	4	experiences	experience	NOUN
ajis02-298	336	5	with	with	ADP
ajis02-298	336	6	pvs	pvs	PROPN
ajis02-298	336	7	for	for	ADP
ajis02-298	336	8	requirements	requirement	NOUN
ajis02-298	336	9	analysis	analysis	NOUN
ajis02-298	336	10	.	.	PUNCT
ajis02-298	337	1	further	further	ADJ
ajis02-298	337	2	work	work	NOUN
ajis02-298	337	3	model	model	NOUN
ajis02-298	337	4	checking	checking	NOUN
ajis02-298	337	5	can	can	AUX
ajis02-298	337	6	become	become	VERB
ajis02-298	337	7	feasible	feasible	ADJ
ajis02-298	337	8	once	once	ADV
ajis02-298	337	9	a	a	DET
ajis02-298	337	10	suitable	suitable	ADJ
ajis02-298	337	11	abstraction	abstraction	NOUN
ajis02-298	337	12	is	be	AUX
ajis02-298	337	13	found	find	VERB
ajis02-298	337	14	.	.	PUNCT
ajis02-298	338	1	this	this	DET
ajis02-298	338	2	approach	approach	NOUN
ajis02-298	338	3	has	have	AUX
ajis02-298	338	4	not	not	PART
ajis02-298	338	5	been	be	AUX
ajis02-298	338	6	pursued	pursue	VERB
ajis02-298	338	7	yet	yet	ADV
ajis02-298	338	8	,	,	PUNCT
ajis02-298	338	9	because	because	SCONJ
ajis02-298	338	10	it	it	PRON
ajis02-298	338	11	was	be	AUX
ajis02-298	338	12	unclear	unclear	ADJ
ajis02-298	338	13	which	which	PRON
ajis02-298	338	14	aspects	aspect	VERB
ajis02-298	338	15	to	to	PART
ajis02-298	338	16	abstract	abstract	VERB
ajis02-298	338	17	away	away	ADV
ajis02-298	338	18	from	from	ADP
ajis02-298	338	19	.	.	PUNCT
ajis02-298	339	1	however	however	ADV
ajis02-298	339	2	,	,	PUNCT
ajis02-298	339	3	it	it	PRON
ajis02-298	339	4	would	would	AUX
ajis02-298	339	5	be	be	AUX
ajis02-298	339	6	interesting	interesting	ADJ
ajis02-298	339	7	to	to	PART
ajis02-298	339	8	see	see	VERB
ajis02-298	339	9	if	if	SCONJ
ajis02-298	339	10	our	our	PRON
ajis02-298	339	11	understanding	understanding	NOUN
ajis02-298	339	12	of	of	ADP
ajis02-298	339	13	ssd	ssd	NOUN
ajis02-298	339	14	's	's	PART
ajis02-298	339	15	requirements	requirement	NOUN
ajis02-298	339	16	could	could	AUX
ajis02-298	339	17	further	far	ADV
ajis02-298	339	18	benefit	benefit	VERB
ajis02-298	339	19	from	from	ADP
ajis02-298	339	20	model	model	NOUN
ajis02-298	339	21	checking	checking	NOUN
ajis02-298	339	22	,	,	PUNCT
ajis02-298	339	23	and	and	CCONJ
ajis02-298	339	24	how	how	SCONJ
ajis02-298	339	25	these	these	DET
ajis02-298	339	26	techniques	technique	NOUN
ajis02-298	339	27	relate	relate	VERB
ajis02-298	339	28	to	to	ADP
ajis02-298	339	29	previous	previous	ADJ
ajis02-298	339	30	research	research	NOUN
ajis02-298	339	31	.	.	PUNCT
ajis02-298	340	1	an	an	DET
ajis02-298	340	2	important	important	ADJ
ajis02-298	340	3	issue	issue	NOUN
ajis02-298	340	4	is	be	AUX
ajis02-298	340	5	the	the	DET
ajis02-298	340	6	construction	construction	NOUN
ajis02-298	340	7	and	and	CCONJ
ajis02-298	340	8	maintenance	maintenance	NOUN
ajis02-298	340	9	of	of	ADP
ajis02-298	340	10	formal	formal	ADJ
ajis02-298	340	11	specifications	specification	NOUN
ajis02-298	340	12	.	.	PUNCT
ajis02-298	341	1	due	due	ADJ
ajis02-298	341	2	the	the	DET
ajis02-298	341	3	results	result	NOUN
ajis02-298	341	4	of	of	ADP
ajis02-298	341	5	requirements	requirement	NOUN
ajis02-298	341	6	analysis	analysis	NOUN
ajis02-298	341	7	,	,	PUNCT
ajis02-298	341	8	the	the	DET
ajis02-298	341	9	informal	informal	ADJ
ajis02-298	341	10	requirements	requirement	NOUN
ajis02-298	341	11	may	may	AUX
ajis02-298	341	12	now	now	ADV
ajis02-298	341	13	be	be	AUX
ajis02-298	341	14	changed	change	VERB
ajis02-298	341	15	.	.	PUNCT
ajis02-298	342	1	obviously	obviously	ADV
ajis02-298	342	2	,	,	PUNCT
ajis02-298	342	3	this	this	PRON
ajis02-298	342	4	will	will	AUX
ajis02-298	342	5	result	result	VERB
ajis02-298	342	6	in	in	ADP
ajis02-298	342	7	modifications	modification	NOUN
ajis02-298	342	8	of	of	ADP
ajis02-298	342	9	the	the	DET
ajis02-298	342	10	vdm	vdm	NOUN
ajis02-298	342	11	and	and	CCONJ
ajis02-298	342	12	the	the	DET
ajis02-298	342	13	pvs	pvs	PROPN
ajis02-298	342	14	specifications	specification	NOUN
ajis02-298	342	15	.	.	PUNCT
ajis02-298	343	1	even	even	ADV
ajis02-298	343	2	though	though	SCONJ
ajis02-298	343	3	the	the	DET
ajis02-298	343	4	informal	informal	ADJ
ajis02-298	343	5	requirements	requirement	NOUN
ajis02-298	343	6	were	be	AUX
ajis02-298	343	7	thoroughly	thoroughly	ADV
ajis02-298	343	8	formalized	formalize	VERB
ajis02-298	343	9	,	,	PUNCT
ajis02-298	343	10	the	the	DET
ajis02-298	343	11	modifications	modification	NOUN
ajis02-298	343	12	may	may	AUX
ajis02-298	343	13	result	result	VERB
ajis02-298	343	14	in	in	ADP
ajis02-298	343	15	a	a	DET
ajis02-298	343	16	major	major	ADJ
ajis02-298	343	17	effort	effort	NOUN
ajis02-298	343	18	.	.	PUNCT
ajis02-298	344	1	one	one	NUM
ajis02-298	344	2	approach	approach	NOUN
ajis02-298	344	3	to	to	PART
ajis02-298	344	4	overcome	overcome	VERB
ajis02-298	344	5	this	this	DET
ajis02-298	344	6	problem	problem	NOUN
ajis02-298	344	7	is	be	AUX
ajis02-298	344	8	given	give	VERB
ajis02-298	344	9	in	in	ADP
ajis02-298	344	10	(	(	PUNCT
ajis02-298	344	11	droschl	droschl	NOUN
ajis02-298	344	12	,	,	PUNCT
ajis02-298	344	13	1999e	1999e	NUM
ajis02-298	344	14	)	)	PUNCT
ajis02-298	344	15	.	.	PUNCT
ajis02-298	345	1	however	however	ADV
ajis02-298	345	2	,	,	PUNCT
ajis02-298	345	3	only	only	ADJ
ajis02-298	345	4	model	model	NOUN
ajis02-298	345	5	oriented	orient	VERB
ajis02-298	345	6	specifications	specification	NOUN
ajis02-298	345	7	have	have	AUX
ajis02-298	345	8	been	be	AUX
ajis02-298	345	9	considered	consider	VERB
ajis02-298	345	10	.	.	PUNCT
ajis02-298	346	1	conclusion	conclusion	NOUN
ajis02-298	346	2	in	in	ADP
ajis02-298	346	3	this	this	DET
ajis02-298	346	4	paper	paper	NOUN
ajis02-298	346	5	,	,	PUNCT
ajis02-298	346	6	we	we	PRON
ajis02-298	346	7	have	have	AUX
ajis02-298	346	8	presented	present	VERB
ajis02-298	346	9	the	the	DET
ajis02-298	346	10	experiences	experience	NOUN
ajis02-298	346	11	gained	gain	VERB
ajis02-298	346	12	in	in	ADP
ajis02-298	346	13	a	a	DET
ajis02-298	346	14	formal	formal	ADJ
ajis02-298	346	15	methods	method	NOUN
ajis02-298	346	16	case	case	NOUN
ajis02-298	346	17	study	study	NOUN
ajis02-298	346	18	in	in	ADP
ajis02-298	346	19	which	which	PRON
ajis02-298	346	20	the	the	DET
ajis02-298	346	21	prototype	prototype	NOUN
ajis02-298	346	22	verification	verification	NOUN
ajis02-298	346	23	system	system	NOUN
ajis02-298	346	24	has	have	AUX
ajis02-298	346	25	been	be	AUX
ajis02-298	346	26	used	use	VERB
ajis02-298	346	27	for	for	ADP
ajis02-298	346	28	requirements	requirement	NOUN
ajis02-298	346	29	analysis	analysis	NOUN
ajis02-298	346	30	.	.	PUNCT
ajis02-298	347	1	the	the	DET
ajis02-298	347	2	experiences	experience	NOUN
ajis02-298	347	3	with	with	ADP
ajis02-298	347	4	this	this	DET
ajis02-298	347	5	formal	formal	ADJ
ajis02-298	347	6	method	method	NOUN
ajis02-298	347	7	have	have	AUX
ajis02-298	347	8	been	be	AUX
ajis02-298	347	9	compared	compare	VERB
ajis02-298	347	10	with	with	ADP
ajis02-298	347	11	previous	previous	ADJ
ajis02-298	347	12	work	work	NOUN
ajis02-298	347	13	where	where	SCONJ
ajis02-298	347	14	the	the	PRON
ajis02-298	347	15	if	if	SCONJ
ajis02-298	347	16	ad	ad	NOUN
ajis02-298	347	17	toolbox	toolbox	NOUN
ajis02-298	347	18	has	have	AUX
ajis02-298	347	19	been	be	AUX
ajis02-298	347	20	used	use	VERB
ajis02-298	347	21	for	for	ADP
ajis02-298	347	22	a	a	DET
ajis02-298	347	23	similar	similar	ADJ
ajis02-298	347	24	purpose	purpose	NOUN
ajis02-298	347	25	.	.	PUNCT
ajis02-298	348	1	the	the	DET
ajis02-298	348	2	conclusion	conclusion	NOUN
ajis02-298	348	3	is	be	AUX
ajis02-298	348	4	that	that	SCONJ
ajis02-298	348	5	both	both	DET
ajis02-298	348	6	approaches	approach	NOUN
ajis02-298	348	7	have	have	VERB
ajis02-298	348	8	their	their	PRON
ajis02-298	348	9	weeknesses	weeknesse	NOUN
ajis02-298	348	10	and	and	CCONJ
ajis02-298	348	11	strengths	strength	NOUN
ajis02-298	348	12	the	the	PRON
ajis02-298	348	13	if	if	SCONJ
ajis02-298	348	14	ad	ad	NOUN
ajis02-298	348	15	toolbox	toolbox	NOUN
ajis02-298	348	16	can	can	AUX
ajis02-298	348	17	be	be	AUX
ajis02-298	348	18	used	use	VERB
ajis02-298	348	19	as	as	ADP
ajis02-298	348	20	part	part	NOUN
ajis02-298	348	21	of	of	ADP
ajis02-298	348	22	larger	large	ADJ
ajis02-298	348	23	projects	project	NOUN
ajis02-298	348	24	where	where	SCONJ
ajis02-298	348	25	c++	c++	ADJ
ajis02-298	348	26	code	code	NOUN
ajis02-298	348	27	has	have	VERB
ajis02-298	348	28	to	to	PART
ajis02-298	348	29	be	be	AUX
ajis02-298	348	30	developed	develop	VERB
ajis02-298	348	31	.	.	PUNCT
ajis02-298	349	1	however	however	ADV
ajis02-298	349	2	,	,	PUNCT
ajis02-298	349	3	it	it	PRON
ajis02-298	349	4	lacks	lack	VERB
ajis02-298	349	5	a	a	DET
ajis02-298	349	6	test	test	NOUN
ajis02-298	349	7	case	case	NOUN
ajis02-298	349	8	generator	generator	NOUN
ajis02-298	349	9	which	which	PRON
ajis02-298	349	10	can	can	AUX
ajis02-298	349	11	make	make	VERB
ajis02-298	349	12	testing	test	VERB
ajis02-298	349	13	a	a	DET
ajis02-298	349	14	painstaking	painstaking	ADJ
ajis02-298	349	15	task	task	NOUN
ajis02-298	349	16	,	,	PUNCT
ajis02-298	349	17	depending	depend	VERB
ajis02-298	349	18	on	on	ADP
ajis02-298	349	19	the	the	DET
ajis02-298	349	20	application	application	NOUN
ajis02-298	349	21	.	.	PUNCT
ajis02-298	350	1	the	the	DET
ajis02-298	350	2	kind	kind	NOUN
ajis02-298	350	3	of	of	ADP
ajis02-298	350	4	analysis	analysis	NOUN
ajis02-298	350	5	that	that	PRON
ajis02-298	350	6	is	be	AUX
ajis02-298	350	7	supported	support	VERB
ajis02-298	350	8	by	by	ADP
ajis02-298	350	9	pvs	pvs	PROPN
ajis02-298	350	10	frees	free	VERB
ajis02-298	350	11	the	the	DET
ajis02-298	350	12	user	user	NOUN
ajis02-298	350	13	mostly	mostly	ADV
ajis02-298	350	14	from	from	ADP
ajis02-298	350	15	having	have	VERB
ajis02-298	350	16	to	to	PART
ajis02-298	350	17	bother	bother	VERB
ajis02-298	350	18	with	with	ADP
ajis02-298	350	19	low	low	ADJ
ajis02-298	350	20	level	level	NOUN
ajis02-298	350	21	details	detail	NOUN
ajis02-298	350	22	.	.	PUNCT
ajis02-298	351	1	however	however	ADV
ajis02-298	351	2	,	,	PUNCT
ajis02-298	351	3	a	a	DET
ajis02-298	351	4	certain	certain	ADJ
ajis02-298	351	5	amount	amount	NOUN
ajis02-298	351	6	of	of	ADP
ajis02-298	351	7	technical	technical	ADJ
ajis02-298	351	8	knowledge	knowledge	NOUN
ajis02-298	351	9	is	be	AUX
ajis02-298	351	10	required	require	VERB
ajis02-298	351	11	for	for	ADP
ajis02-298	351	12	using	use	VERB
ajis02-298	351	13	this	this	DET
ajis02-298	351	14	tool	tool	NOUN
ajis02-298	351	15	it	it	PRON
ajis02-298	351	16	effectively	effectively	ADV
ajis02-298	351	17	.	.	PUNCT
ajis02-298	352	1	also	also	ADV
ajis02-298	352	2	,	,	PUNCT
ajis02-298	352	3	the	the	DET
ajis02-298	352	4	variety	variety	NOUN
ajis02-298	352	5	of	of	ADP
ajis02-298	352	6	commands	command	NOUN
ajis02-298	352	7	at	at	ADP
ajis02-298	352	8	the	the	DET
ajis02-298	352	9	interface	interface	NOUN
ajis02-298	352	10	may	may	AUX
ajis02-298	352	11	be	be	AUX
ajis02-298	352	12	considered	consider	VERB
ajis02-298	352	13	difficult	difficult	ADJ
ajis02-298	352	14	to	to	PART
ajis02-298	352	15	overlook	overlook	VERB
ajis02-298	352	16	.	.	PUNCT
ajis02-298	353	1	finally	finally	ADV
ajis02-298	353	2	,	,	PUNCT
ajis02-298	353	3	the	the	DET
ajis02-298	353	4	concrete	concrete	ADJ
ajis02-298	353	5	form	form	NOUN
ajis02-298	353	6	of	of	ADP
ajis02-298	353	7	specification	specification	NOUN
ajis02-298	353	8	may	may	AUX
ajis02-298	353	9	have	have	VERB
ajis02-298	353	10	a	a	DET
ajis02-298	353	11	major	major	ADJ
ajis02-298	353	12	impact	impact	NOUN
ajis02-298	353	13	on	on	ADP
ajis02-298	353	14	the	the	DET
ajis02-298	353	15	success	success	NOUN
ajis02-298	353	16	of	of	ADP
ajis02-298	353	17	proof	proof	NOUN
ajis02-298	353	18	.	.	PUNCT
ajis02-298	354	1	acknowledgments	acknowledgment	NOUN
ajis02-298	354	2	the	the	DET
ajis02-298	354	3	author	author	NOUN
ajis02-298	354	4	of	of	ADP
ajis02-298	354	5	this	this	DET
ajis02-298	354	6	paper	paper	NOUN
ajis02-298	354	7	would	would	AUX
ajis02-298	354	8	like	like	VERB
ajis02-298	354	9	to	to	PART
ajis02-298	354	10	thank	thank	VERB
ajis02-298	354	11	wolfgang	wolfgang	PROPN
ajis02-298	354	12	herzner	herzner	PROPN
ajis02-298	354	13	,	,	PUNCT
ajis02-298	354	14	walter	walter	PROPN
ajis02-298	354	15	kuhn	kuhn	PROPN
ajis02-298	354	16	,	,	PUNCT
ajis02-298	354	17	michael	michael	PROPN
ajis02-298	354	18	thuswald	thuswald	PROPN
ajis02-298	354	19	,	,	PUNCT
ajis02-298	354	20	and	and	CCONJ
ajis02-298	354	21	erwin	erwin	PROPN
ajis02-298	354	22	schoitsch	schoitsch	PROPN
ajis02-298	354	23	(	(	PUNCT
ajis02-298	354	24	of	of	ADP
ajis02-298	354	25	arcs	arc	NOUN
ajis02-298	354	26	)	)	PUNCT
ajis02-298	354	27	for	for	ADP
ajis02-298	354	28	their	their	PRON
ajis02-298	354	29	interest	interest	NOUN
ajis02-298	354	30	in	in	ADP
ajis02-298	354	31	applying	apply	VERB
ajis02-298	354	32	formal	formal	ADJ
ajis02-298	354	33	methods	method	NOUN
ajis02-298	354	34	to	to	ADP
ajis02-298	354	35	an	an	DET
ajis02-298	354	36	industrial	industrial	ADJ
ajis02-298	354	37	application	application	NOUN
ajis02-298	354	38	.	.	PUNCT
ajis02-298	355	1	arcs	arcs	PROPN
ajis02-298	355	2	grants	grant	VERB
ajis02-298	355	3	the	the	DET
ajis02-298	355	4	author	author	NOUN
ajis02-298	355	5	a	a	DET
ajis02-298	355	6	phd	phd	NOUN
ajis02-298	355	7	scholarship	scholarship	NOUN
ajis02-298	355	8	.	.	PUNCT
ajis02-298	356	1	peter	peter	PROPN
ajis02-298	356	2	lucas	lucas	PROPN
ajis02-298	356	3	(	(	PUNCT
ajis02-298	356	4	software	software	NOUN
ajis02-298	356	5	tech	tech	NOUN
ajis02-298	356	6	.	.	PUNCT
ajis02-298	356	7	,	,	PUNCT
ajis02-298	356	8	tu	tu	PROPN
ajis02-298	356	9	graz	graz	PROPN
ajis02-298	356	10	)	)	PUNCT
ajis02-298	356	11	has	have	AUX
ajis02-298	356	12	provided	provide	VERB
ajis02-298	356	13	invaluable	invaluable	ADJ
ajis02-298	356	14	guidance	guidance	NOUN
ajis02-298	356	15	throughout	throughout	ADP
ajis02-298	356	16	this	this	DET
ajis02-298	356	17	project	project	NOUN
ajis02-298	356	18	.	.	PUNCT
ajis02-298	357	1	pascal	pascal	PROPN
ajis02-298	357	2	fenkam	fenkam	PROPN
ajis02-298	357	3	,	,	PUNCT
ajis02-298	357	4	ralf	ralf	PROPN
ajis02-298	357	5	huuck	huuck	NOUN
ajis02-298	357	6	,	,	PUNCT
ajis02-298	357	7	christian	christian	ADJ
ajis02-298	357	8	luidolt	luidolt	NOUN
ajis02-298	357	9	,	,	PUNCT
ajis02-298	357	10	walther	walther	NOUN
ajis02-298	357	11	neuper	neuper	NOUN
ajis02-298	357	12	,	,	PUNCT
ajis02-298	357	13	christian	christian	PROPN
ajis02-298	357	14	schinagl	schinagl	NOUN
ajis02-298	357	15	,	,	PUNCT
ajis02-298	357	16	and	and	CCONJ
ajis02-298	357	17	rudi	rudi	PROPN
ajis02-298	357	18	schlatte	schlatte	PROPN
ajis02-298	357	19	have	have	AUX
ajis02-298	357	20	read	read	VERB
ajis02-298	357	21	earlier	early	ADJ
ajis02-298	357	22	versions	version	NOUN
ajis02-298	357	23	of	of	ADP
ajis02-298	357	24	this	this	DET
ajis02-298	357	25	paper	paper	NOUN
ajis02-298	357	26	.	.	PUNCT
ajis02-298	358	1	155	155	NUM
ajis02-298	358	2	references	reference	NOUN
ajis02-298	358	3	agerholm	agerholm	NOUN
ajis02-298	358	4	,	,	PUNCT
ajis02-298	358	5	s.	s.	PROPN
ajis02-298	358	6	(	(	PUNCT
ajis02-298	358	7	1996	1996	NUM
ajis02-298	358	8	)	)	PUNCT
ajis02-298	358	9	.	.	PUNCT
ajis02-298	359	1	translating	translate	VERB
ajis02-298	359	2	specifications	specification	NOUN
ajis02-298	359	3	in	in	ADP
ajis02-298	359	4	vdm	vdm	NOUN
ajis02-298	359	5	-	-	PUNCT
ajis02-298	359	6	sl	sl	PROPN
ajis02-298	359	7	to	to	ADP
ajis02-298	359	8	pvs	pvs	PROPN
ajis02-298	359	9	.	.	PUNCT
ajis02-298	360	1	in	in	ADP
ajis02-298	360	2	j.	j.	PROPN
ajis02-298	360	3	von	von	PROPN
ajis02-298	360	4	wright	wright	PROPN
ajis02-298	360	5	,	,	PUNCT
ajis02-298	360	6	j.	j.	PROPN
ajis02-298	360	7	and	and	CCONJ
ajis02-298	360	8	j.	j.	PROPN
ajis02-298	360	9	harisson	harisson	PROPN
ajis02-298	360	10	,	,	PUNCT
ajis02-298	360	11	editors	editor	NOUN
ajis02-298	360	12	,	,	PUNCT
ajis02-298	360	13	proceeding	proceeding	NOUN
ajis02-298	360	14	of	of	ADP
ajis02-298	360	15	the	the	DET
ajis02-298	360	16	9th	9th	ADJ
ajis02-298	360	17	international	international	ADJ
ajis02-298	360	18	conference	conference	NOUN
ajis02-298	360	19	on	on	ADP
ajis02-298	360	20	theorem	theorem	ADJ
ajis02-298	360	21	proving	prove	VERB
ajis02-298	360	22	in	in	ADP
ajis02-298	360	23	higher	high	ADJ
ajis02-298	360	24	order	order	NOUN
ajis02-298	360	25	logics	logic	NOUN
ajis02-298	360	26	,	,	PUNCT
ajis02-298	360	27	volume	volume	NOUN
ajis02-298	360	28	1125	1125	NUM
ajis02-298	360	29	of	of	ADP
ajis02-298	360	30	lecture	lecture	NOUN
ajis02-298	360	31	notes	note	NOUN
ajis02-298	360	32	in	in	ADP
ajis02-298	360	33	computer	computer	NOUN
ajis02-298	360	34	science	science	NOUN
ajis02-298	360	35	,	,	PUNCT
ajis02-298	360	36	pages	page	NOUN
ajis02-298	360	37	1	1	NUM
ajis02-298	360	38	-	-	SYM
ajis02-298	360	39	16	16	NUM
ajis02-298	360	40	,	,	PUNCT
ajis02-298	360	41	turku	turku	PROPN
ajis02-298	360	42	,	,	PUNCT
ajis02-298	360	43	finland	finland	PROPN
ajis02-298	360	44	.	.	PUNCT
ajis02-298	360	45	springer	springer	PROPN
ajis02-298	360	46	verlag	verlag	PROPN
ajis02-298	360	47	.	.	PUNCT
ajis02-298	361	1	agerholm	agerholm	PROPN
ajis02-298	361	2	,	,	PUNCT
ajis02-298	361	3	s.	s.	PROPN
ajis02-298	361	4	and	and	CCONJ
ajis02-298	361	5	frost	frost	NOUN
ajis02-298	361	6	,	,	PUNCT
ajis02-298	361	7	j.	j.	PROPN
ajis02-298	361	8	(	(	PUNCT
ajis02-298	361	9	1997	1997	NUM
ajis02-298	361	10	)	)	PUNCT
ajis02-298	361	11	.	.	PUNCT
ajis02-298	362	1	an	an	DET
ajis02-298	362	2	isabelle	isabelle	NOUN
ajis02-298	362	3	-	-	PUNCT
ajis02-298	362	4	based	base	VERB
ajis02-298	362	5	theorem	theorem	ADJ
ajis02-298	362	6	prover	prover	NOUN
ajis02-298	362	7	for	for	ADP
ajis02-298	362	8	vdm	vdm	NOUN
ajis02-298	362	9	-	-	PUNCT
ajis02-298	362	10	sl	sl	NOUN
ajis02-298	362	11	.	.	PUNCT
ajis02-298	362	12	in	in	ADP
ajis02-298	362	13	gunter	gunter	PROPN
ajis02-298	362	14	,	,	PUNCT
ajis02-298	362	15	e.	e.	PROPN
ajis02-298	362	16	and	and	CCONJ
ajis02-298	362	17	felty	felty	PROPN
ajis02-298	362	18	,	,	PUNCT
ajis02-298	362	19	a.	a.	NOUN
ajis02-298	362	20	,	,	PUNCT
ajis02-298	362	21	editors	editor	NOUN
ajis02-298	362	22	.	.	PUNCT
ajis02-298	363	1	theorem	theorem	ADJ
ajis02-298	363	2	proving	prove	VERB
ajis02-298	363	3	in	in	ADP
ajis02-298	363	4	higher	high	ADJ
ajis02-298	363	5	order	order	NOUN
ajis02-298	363	6	logics	logic	NOUN
ajis02-298	363	7	:	:	PUNCT
ajis02-298	363	8	10th	10th	ADJ
ajis02-298	363	9	international	international	ADJ
ajis02-298	363	10	conference	conference	NOUN
ajis02-298	363	11	,	,	PUNCT
ajis02-298	363	12	tphols	tphol	VERB
ajis02-298	363	13	'	'	NUM
ajis02-298	363	14	97	97	NUM
ajis02-298	363	15	,	,	PUNCT
ajis02-298	363	16	volume	volume	NOUN
ajis02-298	363	17	1275	1275	NUM
ajis02-298	363	18	of	of	ADP
ajis02-298	363	19	lecture	lecture	NOUN
ajis02-298	363	20	notes	note	NOUN
ajis02-298	363	21	in	in	ADP
ajis02-298	363	22	computer	computer	NOUN
ajis02-298	363	23	science	science	NOUN
ajis02-298	363	24	,	,	PUNCT
ajis02-298	363	25	pages	page	NOUN
ajis02-298	363	26	1	1	NUM
ajis02-298	363	27	-	-	PUNCT
ajis02-298	363	28	?	?	PUNCT
ajis02-298	363	29	?	?	PUNCT
ajis02-298	364	1	springer	springer	NOUN
ajis02-298	364	2	-	-	PUNCT
ajis02-298	364	3	verlag	verlag	PROPN
ajis02-298	364	4	.	.	PUNCT
ajis02-298	365	1	ambriola	ambriola	PROPN
ajis02-298	365	2	,	,	PUNCT
ajis02-298	365	3	v.	v.	PROPN
ajis02-298	365	4	,	,	PUNCT
ajis02-298	365	5	cignoni	cignoni	NOUN
ajis02-298	365	6	,	,	PUNCT
ajis02-298	365	7	g.	g.	PROPN
ajis02-298	365	8	,	,	PUNCT
ajis02-298	365	9	and	and	CCONJ
ajis02-298	365	10	fernstroem	fernstroem	NOUN
ajis02-298	365	11	,	,	PUNCT
ajis02-298	365	12	c.	c.	PROPN
ajis02-298	365	13	(	(	PUNCT
ajis02-298	365	14	1997	1997	NUM
ajis02-298	365	15	)	)	PUNCT
ajis02-298	365	16	.	.	PUNCT
ajis02-298	366	1	current	current	ADJ
ajis02-298	366	2	issues	issue	NOUN
ajis02-298	366	3	on	on	ADP
ajis02-298	366	4	integration	integration	NOUN
ajis02-298	366	5	.	.	PUNCT
ajis02-298	367	1	in	in	ADP
ajis02-298	367	2	schafer	schafer	PROPN
ajis02-298	367	3	,	,	PUNCT
ajis02-298	367	4	w.	w.	PROPN
ajis02-298	367	5	,	,	PUNCT
ajis02-298	367	6	editor	editor	NOUN
ajis02-298	367	7	,	,	PUNCT
ajis02-298	367	8	proceeding	proceeding	NOUN
ajis02-298	367	9	of	of	ADP
ajis02-298	367	10	software	software	NOUN
ajis02-298	367	11	process	process	NOUN
ajis02-298	367	12	technology	technology	NOUN
ajis02-298	367	13	:	:	PUNCT
ajis02-298	367	14	4th	4th	ADJ
ajis02-298	367	15	european	european	ADJ
ajis02-298	367	16	workshop	workshop	NOUN
ajis02-298	367	17	ewspt	ewspt	PROPN
ajis02-298	367	18	'	'	NUM
ajis02-298	367	19	95	95	NUM
ajis02-298	367	20	,	,	PUNCT
ajis02-298	367	21	noordwijkerhout	noordwijkerhout	PROPN
ajis02-298	367	22	,	,	PUNCT
ajis02-298	367	23	the	the	DET
ajis02-298	367	24	netherlands	netherlands	PROPN
ajis02-298	367	25	,	,	PUNCT
ajis02-298	367	26	pages	page	NOUN
ajis02-298	367	27	197-	197-	NUM
ajis02-298	367	28	?	?	PUNCT
ajis02-298	367	29	?	?	PUNCT
ajis02-298	368	1	springer	springer	NOUN
ajis02-298	368	2	-	-	PUNCT
ajis02-298	368	3	verlag	verlag	PROPN
ajis02-298	368	4	.	.	PUNCT
ajis02-298	369	1	lecture	lecture	NOUN
ajis02-298	369	2	notes	note	NOUN
ajis02-298	369	3	in	in	ADP
ajis02-298	369	4	computer	computer	NOUN
ajis02-298	369	5	science	science	NOUN
ajis02-298	369	6	no	no	INTJ
ajis02-298	369	7	.	.	PROPN
ajis02-298	370	1	913	913	NUM
ajis02-298	370	2	.	.	PUNCT
ajis02-298	371	1	bovven	bovven	PROPN
ajis02-298	371	2	,	,	PUNCT
ajis02-298	371	3	j.	j.	PROPN
ajis02-298	371	4	p.	p.	PROPN
ajis02-298	371	5	and	and	CCONJ
ajis02-298	371	6	hinchey	hinchey	PROPN
ajis02-298	371	7	,	,	PUNCT
ajis02-298	371	8	m.	m.	NOUN
ajis02-298	371	9	g.	g.	PROPN
ajis02-298	371	10	(	(	PUNCT
ajis02-298	371	11	1995	1995	NUM
ajis02-298	371	12	)	)	PUNCT
ajis02-298	371	13	.	.	PUNCT
ajis02-298	372	1	ten	ten	NUM
ajis02-298	372	2	commandments	commandment	NOUN
ajis02-298	372	3	of	of	ADP
ajis02-298	372	4	formal	formal	ADJ
ajis02-298	372	5	methods	method	NOUN
ajis02-298	372	6	.	.	PUNCT
ajis02-298	373	1	computer	computer	NOUN
ajis02-298	373	2	,	,	PUNCT
ajis02-298	373	3	28(4):56	28(4):56	PROPN
ajis02-298	373	4	-	-	SYM
ajis02-298	373	5	63	63	NUM
ajis02-298	373	6	.	.	PUNCT
ajis02-298	373	7	butler	butler	PROPN
ajis02-298	373	8	,	,	PUNCT
ajis02-298	373	9	r.	r.	PROPN
ajis02-298	373	10	w.	w.	PROPN
ajis02-298	373	11	(	(	PUNCT
ajis02-298	373	12	1996	1996	NUM
ajis02-298	373	13	)	)	PUNCT
ajis02-298	373	14	.	.	PUNCT
ajis02-298	374	1	an	an	DET
ajis02-298	374	2	introduction	introduction	NOUN
ajis02-298	374	3	to	to	ADP
ajis02-298	374	4	requirements	requirement	NOUN
ajis02-298	374	5	capture	capture	VERB
ajis02-298	374	6	using	use	VERB
ajis02-298	374	7	pvs	pvs	PROPN
ajis02-298	374	8	:	:	PUNCT
ajis02-298	374	9	specification	specification	NOUN
ajis02-298	374	10	of	of	ADP
ajis02-298	374	11	a	a	DET
ajis02-298	374	12	simple	simple	ADJ
ajis02-298	374	13	autopilot	autopilot	NOUN
ajis02-298	374	14	.	.	PUNCT
ajis02-298	375	1	nasa	nasa	PROPN
ajis02-298	375	2	technical	technical	ADJ
ajis02-298	375	3	memorandum	memorandum	NOUN
ajis02-298	375	4	110255	110255	NUM
ajis02-298	375	5	,	,	PUNCT
ajis02-298	375	6	nasa	nasa	PROPN
ajis02-298	375	7	langley	langley	PROPN
ajis02-298	375	8	research	research	PROPN
ajis02-298	375	9	center	center	PROPN
ajis02-298	375	10	,	,	PUNCT
ajis02-298	375	11	hampton	hampton	PROPN
ajis02-298	375	12	,	,	PUNCT
ajis02-298	375	13	va	va	PROPN
ajis02-298	375	14	.	.	PROPN
ajis02-298	375	15	clarke	clarke	PROPN
ajis02-298	375	16	,	,	PUNCT
ajis02-298	375	17	e.	e.	PROPN
ajis02-298	375	18	m.	m.	PROPN
ajis02-298	375	19	and	and	CCONJ
ajis02-298	375	20	wing	wing	NOUN
ajis02-298	375	21	,	,	PUNCT
ajis02-298	375	22	j.	j.	PROPN
ajis02-298	375	23	m.	m.	PROPN
ajis02-298	375	24	(	(	PUNCT
ajis02-298	375	25	1996	1996	NUM
ajis02-298	375	26	)	)	PUNCT
ajis02-298	375	27	.	.	PUNCT
ajis02-298	376	1	formal	formal	ADJ
ajis02-298	376	2	methods	method	NOUN
ajis02-298	376	3	:	:	PUNCT
ajis02-298	376	4	state	state	NOUN
ajis02-298	376	5	of	of	ADP
ajis02-298	376	6	the	the	DET
ajis02-298	376	7	art	art	NOUN
ajis02-298	376	8	and	and	CCONJ
ajis02-298	376	9	future	future	ADJ
ajis02-298	376	10	directions	direction	NOUN
ajis02-298	376	11	.	.	PUNCT
ajis02-298	377	1	technical	technical	ADJ
ajis02-298	377	2	report	report	PROPN
ajis02-298	377	3	cmu	cmu	NOUN
ajis02-298	377	4	-	-	PUNCT
ajis02-298	377	5	cs-96	cs-96	ADV
ajis02-298	377	6	-	-	PUNCT
ajis02-298	377	7	178	178	NUM
ajis02-298	377	8	,	,	PUNCT
ajis02-298	377	9	carnegie	carnegie	NOUN
ajis02-298	377	10	mellon	mellon	PROPN
ajis02-298	377	11	university	university	PROPN
ajis02-298	377	12	.	.	PUNCT
ajis02-298	378	1	davis	davis	PROPN
ajis02-298	378	2	,	,	PUNCT
ajis02-298	378	3	a.	a.	NOUN
ajis02-298	378	4	m.	m.	NOUN
ajis02-298	378	5	(	(	PUNCT
ajis02-298	378	6	1993	1993	NUM
ajis02-298	378	7	)	)	PUNCT
ajis02-298	378	8	.	.	PUNCT
ajis02-298	379	1	software	software	NOUN
ajis02-298	379	2	requirements	requirement	NOUN
ajis02-298	379	3	:	:	PUNCT
ajis02-298	379	4	objects	object	NOUN
ajis02-298	379	5	,	,	PUNCT
ajis02-298	379	6	functions	function	NOUN
ajis02-298	379	7	and	and	CCONJ
ajis02-298	379	8	states	state	NOUN
ajis02-298	379	9	.	.	PUNCT
ajis02-298	380	1	prentice	prentice	PROPN
ajis02-298	380	2	hall	hall	PROPN
ajis02-298	380	3	,	,	PUNCT
ajis02-298	380	4	englewood	englewood	PROPN
ajis02-298	380	5	cliffs	cliffs	PROPN
ajis02-298	380	6	.	.	PUNCT
ajis02-298	381	1	davis	davis	PROPN
ajis02-298	381	2	,	,	PUNCT
ajis02-298	381	3	a.	a.	NOUN
ajis02-298	381	4	m.	m.	NOUN
ajis02-298	381	5	et	et	PROPN
ajis02-298	381	6	al	al	PROPN
ajis02-298	381	7	.	.	PROPN
ajis02-298	381	8	(	(	PUNCT
ajis02-298	381	9	1993	1993	NUM
ajis02-298	381	10	)	)	PUNCT
ajis02-298	381	11	.	.	PUNCT
ajis02-298	382	1	identifying	identify	VERB
ajis02-298	382	2	and	and	CCONJ
ajis02-298	382	3	measuring	measure	VERB
ajis02-298	382	4	quality	quality	NOUN
ajis02-298	382	5	on	on	ADP
ajis02-298	382	6	software	software	NOUN
ajis02-298	382	7	requirments	requirment	NOUN
ajis02-298	382	8	specification	specification	NOUN
ajis02-298	382	9	.	.	PUNCT
ajis02-298	383	1	in	in	ADP
ajis02-298	383	2	proc	proc	PROPN
ajis02-298	383	3	.	.	PUNCT
ajis02-298	384	1	software	software	NOUN
ajis02-298	384	2	metrics	metric	NOUN
ajis02-298	384	3	symp	symp	NOUN
ajis02-298	384	4	.	.	PUNCT
ajis02-298	385	1	,	,	PUNCT
ajis02-298	385	2	pages	page	NOUN
ajis02-298	385	3	141	141	NUM
ajis02-298	385	4	-	-	SYM
ajis02-298	385	5	152	152	NUM
ajis02-298	385	6	.	.	PUNCT
ajis02-298	386	1	ieee	ieee	PROPN
ajis02-298	386	2	cs	cs	PROPN
ajis02-298	386	3	press	press	PROPN
ajis02-298	386	4	.	.	PUNCT
ajis02-298	387	1	di	di	PROPN
ajis02-298	387	2	vito	vito	PROPN
ajis02-298	387	3	,	,	PUNCT
ajis02-298	387	4	b.	b.	PROPN
ajis02-298	387	5	l.	l.	PROPN
ajis02-298	387	6	and	and	CCONJ
ajis02-298	387	7	roberts	roberts	PROPN
ajis02-298	387	8	,	,	PUNCT
ajis02-298	387	9	l.	l.	PROPN
ajis02-298	387	10	w.	w.	PROPN
ajis02-298	387	11	(	(	PUNCT
ajis02-298	387	12	1996	1996	NUM
ajis02-298	387	13	)	)	PUNCT
ajis02-298	387	14	.	.	PUNCT
ajis02-298	388	1	using	use	VERB
ajis02-298	388	2	formal	formal	ADJ
ajis02-298	388	3	methods	method	NOUN
ajis02-298	388	4	to	to	PART
ajis02-298	388	5	assist	assist	VERB
ajis02-298	388	6	in	in	ADP
ajis02-298	388	7	the	the	DET
ajis02-298	388	8	requirements	requirement	NOUN
ajis02-298	388	9	analysis	analysis	NOUN
ajis02-298	388	10	of	of	ADP
ajis02-298	388	11	the	the	DET
ajis02-298	388	12	space	space	NOUN
ajis02-298	388	13	shuttle	shuttle	NOUN
ajis02-298	388	14	gps	gps	PROPN
ajis02-298	388	15	change	change	NOUN
ajis02-298	388	16	request	request	NOUN
ajis02-298	388	17	.	.	PUNCT
ajis02-298	389	1	nasa	nasa	PROPN
ajis02-298	389	2	contractor	contractor	PROPN
ajis02-298	389	3	report	report	PROPN
ajis02-298	389	4	4752	4752	NUM
ajis02-298	389	5	,	,	PUNCT
ajis02-298	389	6	nasa	nasa	PROPN
ajis02-298	389	7	langley	langley	PROPN
ajis02-298	389	8	research	research	NOUN
ajis02-298	389	9	center	center	NOUN
ajis02-298	389	10	.	.	PUNCT
ajis02-298	390	1	droschl	droschl	NOUN
ajis02-298	390	2	,	,	PUNCT
ajis02-298	390	3	g.	g.	PROPN
ajis02-298	390	4	(	(	PUNCT
ajis02-298	390	5	1999a	1999a	NUM
ajis02-298	390	6	)	)	PUNCT
ajis02-298	390	7	.	.	PUNCT
ajis02-298	391	1	analyzing	analyze	VERB
ajis02-298	391	2	the	the	DET
ajis02-298	391	3	requirements	requirement	NOUN
ajis02-298	391	4	of	of	ADP
ajis02-298	391	5	an	an	DET
ajis02-298	391	6	access	access	NOUN
ajis02-298	391	7	control	control	NOUN
ajis02-298	391	8	using	use	VERB
ajis02-298	391	9	vdmtools	vdmtool	NOUN
ajis02-298	391	10	and	and	CCONJ
ajis02-298	391	11	pvs	pvs	PROPN
ajis02-298	391	12	(	(	PUNCT
ajis02-298	391	13	abstract	abstract	ADJ
ajis02-298	391	14	)	)	PUNCT
ajis02-298	391	15	.	.	PUNCT
ajis02-298	392	1	in	in	ADP
ajis02-298	392	2	wing	wing	NOUN
ajis02-298	392	3	,	,	PUNCT
ajis02-298	392	4	j.	j.	PROPN
ajis02-298	392	5	m.	m.	PROPN
ajis02-298	392	6	,	,	PUNCT
ajis02-298	392	7	woodcock	woodcock	NOUN
ajis02-298	392	8	,	,	PUNCT
ajis02-298	392	9	j.	j.	PROPN
ajis02-298	392	10	,	,	PUNCT
ajis02-298	392	11	and	and	CCONJ
ajis02-298	392	12	davies	davy	NOUN
ajis02-298	392	13	,	,	PUNCT
ajis02-298	392	14	j.	j.	PROPN
ajis02-298	392	15	,	,	PUNCT
ajis02-298	392	16	editors	editor	NOUN
ajis02-298	392	17	,	,	PUNCT
ajis02-298	392	18	proceedings	proceeding	NOUN
ajis02-298	392	19	of	of	ADP
ajis02-298	392	20	fm'99	fm'99	ADJ
ajis02-298	392	21	formal	formal	ADJ
ajis02-298	392	22	methods	method	NOUN
ajis02-298	392	23	,	,	PUNCT
ajis02-298	392	24	world	world	NOUN
ajis02-298	392	25	congress	congress	PROPN
ajis02-298	392	26	on	on	ADP
ajis02-298	392	27	formal	formal	ADJ
ajis02-298	392	28	methods	method	NOUN
ajis02-298	392	29	in	in	ADP
ajis02-298	392	30	the	the	DET
ajis02-298	392	31	development	development	NOUN
ajis02-298	392	32	of	of	ADP
ajis02-298	392	33	computing	computing	NOUN
ajis02-298	392	34	systems	system	NOUN
ajis02-298	392	35	,	,	PUNCT
ajis02-298	392	36	toulouse	toulouse	NOUN
ajis02-298	392	37	,	,	PUNCT
ajis02-298	392	38	france	france	PROPN
ajis02-298	392	39	,	,	PUNCT
ajis02-298	392	40	number	number	NOUN
ajis02-298	392	41	1709	1709	NUM
ajis02-298	392	42	in	in	ADP
ajis02-298	392	43	lecture	lecture	NOUN
ajis02-298	392	44	notes	note	NOUN
ajis02-298	392	45	in	in	ADP
ajis02-298	392	46	computer	computer	NOUN
ajis02-298	392	47	science	science	NOUN
ajis02-298	392	48	.	.	PUNCT
ajis02-298	393	1	springer	springer	PROPN
ajis02-298	393	2	verlag	verlag	PROPN
ajis02-298	393	3	.	.	PUNCT
ajis02-298	394	1	droschl	droschl	PROPN
ajis02-298	394	2	,	,	PUNCT
ajis02-298	394	3	g.	g.	PROPN
ajis02-298	394	4	(	(	PUNCT
ajis02-298	394	5	1999b	1999b	NUM
ajis02-298	394	6	)	)	PUNCT
ajis02-298	394	7	.	.	PUNCT
ajis02-298	395	1	design	design	NOUN
ajis02-298	395	2	and	and	CCONJ
ajis02-298	395	3	application	application	NOUN
ajis02-298	395	4	of	of	ADP
ajis02-298	395	5	a	a	DET
ajis02-298	395	6	test	test	NOUN
ajis02-298	395	7	case	case	NOUN
ajis02-298	395	8	generator	generator	NOUN
ajis02-298	395	9	for	for	ADP
ajis02-298	395	10	vdm	vdm	NOUN
ajis02-298	395	11	-	-	PUNCT
ajis02-298	395	12	sl	sl	PROPN
ajis02-298	395	13	(	(	PUNCT
ajis02-298	395	14	extended	extended	ADJ
ajis02-298	395	15	abstract	abstract	NOUN
ajis02-298	395	16	)	)	PUNCT
ajis02-298	395	17	.	.	PUNCT
ajis02-298	396	1	in	in	ADP
ajis02-298	396	2	fitzgerald	fitzgerald	PROPN
ajis02-298	396	3	,	,	PUNCT
ajis02-298	396	4	j.	j.	PROPN
ajis02-298	396	5	and	and	CCONJ
ajis02-298	396	6	larson	larson	PROPN
ajis02-298	396	7	,	,	PUNCT
ajis02-298	396	8	p.	p.	PROPN
ajis02-298	396	9	g.	g.	PROPN
ajis02-298	396	10	,	,	PUNCT
ajis02-298	396	11	editors	editor	NOUN
ajis02-298	396	12	,	,	PUNCT
ajis02-298	396	13	workshop	workshop	NOUN
ajis02-298	396	14	materials	material	NOUN
ajis02-298	396	15	:	:	PUNCT
ajis02-298	396	16	vdm	vdm	NOUN
ajis02-298	396	17	in	in	ADP
ajis02-298	396	18	practice	practice	NOUN
ajis02-298	396	19	!	!	PUNCT
ajis02-298	397	1	,	,	PUNCT
ajis02-298	397	2	part	part	NOUN
ajis02-298	397	3	of	of	ADP
ajis02-298	397	4	the	the	DET
ajis02-298	397	5	fm'99	fm'99	PROPN
ajis02-298	397	6	world	world	PROPN
ajis02-298	397	7	congress	congress	PROPN
ajis02-298	397	8	on	on	ADP
ajis02-298	397	9	formal	formal	ADJ
ajis02-298	397	10	methods	method	NOUN
ajis02-298	397	11	,	,	PUNCT
ajis02-298	397	12	toulouse	toulouse	NOUN
ajis02-298	397	13	.	.	PUNCT
ajis02-298	398	1	springer	springer	NOUN
ajis02-298	398	2	-	-	PUNCT
ajis02-298	398	3	verlag	verlag	PROPN
ajis02-298	398	4	.	.	PUNCT
ajis02-298	399	1	droschl	droschl	PROPN
ajis02-298	399	2	,	,	PUNCT
ajis02-298	399	3	g.	g.	PROPN
ajis02-298	399	4	(	(	PUNCT
ajis02-298	399	5	1999c	1999c	NUM
ajis02-298	399	6	)	)	PUNCT
ajis02-298	399	7	.	.	PUNCT
ajis02-298	400	1	events	event	NOUN
ajis02-298	400	2	and	and	CCONJ
ajis02-298	400	3	scenarios	scenario	NOUN
ajis02-298	400	4	in	in	ADP
ajis02-298	400	5	vdm	vdm	PROPN
ajis02-298	400	6	and	and	CCONJ
ajis02-298	400	7	pvs	pvs	PROPN
ajis02-298	400	8	.	.	PUNCT
ajis02-298	401	1	in	in	ADP
ajis02-298	401	2	3rd	3rd	ADJ
ajis02-298	401	3	irish	irish	ADJ
ajis02-298	401	4	workshop	workshop	NOUN
ajis02-298	401	5	in	in	ADP
ajis02-298	401	6	formal	formal	ADJ
ajis02-298	401	7	methods	method	NOUN
ajis02-298	401	8	,	,	PUNCT
ajis02-298	401	9	galway	galway	NOUN
ajis02-298	401	10	,	,	PUNCT
ajis02-298	401	11	electronic	electronic	ADJ
ajis02-298	401	12	workshops	workshop	NOUN
ajis02-298	401	13	in	in	ADP
ajis02-298	401	14	computing	computing	NOUN
ajis02-298	401	15	.	.	PUNCT
ajis02-298	402	1	springer	springer	NOUN
ajis02-298	402	2	-	-	PUNCT
ajis02-298	402	3	verlag	verlag	PROPN
ajis02-298	402	4	.	.	PUNCT
ajis02-298	403	1	droschl	droschl	PROPN
ajis02-298	403	2	,	,	PUNCT
ajis02-298	403	3	g.	g.	PROPN
ajis02-298	403	4	(	(	PUNCT
ajis02-298	403	5	1999d	1999d	NUM
ajis02-298	403	6	)	)	PUNCT
ajis02-298	403	7	.	.	PUNCT
ajis02-298	404	1	formal	formal	ADJ
ajis02-298	404	2	specification	specification	NOUN
ajis02-298	404	3	and	and	CCONJ
ajis02-298	404	4	analysis	analysis	NOUN
ajis02-298	404	5	of	of	ADP
ajis02-298	404	6	an	an	DET
ajis02-298	404	7	access	access	NOUN
ajis02-298	404	8	control	control	NOUN
ajis02-298	404	9	using	use	VERB
ajis02-298	404	10	ifad	ifad	PROPN
ajis02-298	404	11	's	's	PART
ajis02-298	404	12	vdmtools	vdmtool	NOUN
ajis02-298	404	13	.	.	PUNCT
ajis02-298	405	1	technical	technical	ADJ
ajis02-298	405	2	report	report	PROPN
ajis02-298	405	3	ist	ist	PROPN
ajis02-298	405	4	-	-	PUNCT
ajis02-298	405	5	tec-99	tec-99	NOUN
ajis02-298	405	6	-	-	PUNCT
ajis02-298	405	7	06	06	NUM
ajis02-298	405	8	,	,	PUNCT
ajis02-298	405	9	institute	institute	NOUN
ajis02-298	405	10	for	for	ADP
ajis02-298	405	11	software	software	NOUN
ajis02-298	405	12	technology	technology	NOUN
ajis02-298	405	13	,	,	PUNCT
ajis02-298	405	14	tu	tu	PROPN
ajis02-298	405	15	-	-	PUNCT
ajis02-298	405	16	graz	graz	PROPN
ajis02-298	405	17	,	,	PUNCT
ajis02-298	405	18	austria	austria	PROPN
ajis02-298	405	19	.	.	PUNCT
ajis02-298	406	1	droschl	droschl	PROPN
ajis02-298	406	2	,	,	PUNCT
ajis02-298	406	3	g.	g.	PROPN
ajis02-298	406	4	(	(	PUNCT
ajis02-298	406	5	1999e	1999e	NUM
ajis02-298	406	6	)	)	PUNCT
ajis02-298	406	7	.	.	PUNCT
ajis02-298	407	1	interactive	interactive	ADJ
ajis02-298	407	2	development	development	NOUN
ajis02-298	407	3	and	and	CCONJ
ajis02-298	407	4	maintenance	maintenance	NOUN
ajis02-298	407	5	of	of	ADP
ajis02-298	407	6	model	model	NOUN
ajis02-298	407	7	-	-	PUNCT
ajis02-298	407	8	oriented	orient	VERB
ajis02-298	407	9	formal	formal	ADJ
ajis02-298	407	10	specifications	specification	NOUN
ajis02-298	407	11	.	.	PUNCT
ajis02-298	408	1	technical	technical	ADJ
ajis02-298	408	2	report	report	PROPN
ajis02-298	408	3	ist	ist	PROPN
ajis02-298	408	4	-	-	PUNCT
ajis02-298	408	5	tec-99	tec-99	NOUN
ajis02-298	408	6	-	-	PUNCT
ajis02-298	408	7	19	19	NUM
ajis02-298	408	8	,	,	PUNCT
ajis02-298	408	9	institute	institute	NOUN
ajis02-298	408	10	for	for	ADP
ajis02-298	408	11	software	software	NOUN
ajis02-298	408	12	technology	technology	NOUN
ajis02-298	408	13	,	,	PUNCT
ajis02-298	408	14	technical	technical	ADJ
ajis02-298	408	15	university	university	PROPN
ajis02-298	408	16	of	of	ADP
ajis02-298	408	17	graz	graz	PROPN
ajis02-298	408	18	,	,	PUNCT
ajis02-298	408	19	austria	austria	PROPN
ajis02-298	408	20	.	.	PROPN
ajis02-298	408	21	submitted	submit	VERB
ajis02-298	408	22	for	for	ADP
ajis02-298	408	23	publication	publication	NOUN
ajis02-298	408	24	.	.	PUNCT
ajis02-298	409	1	dutertre	dutertre	PROPN
ajis02-298	409	2	,	,	PUNCT
ajis02-298	409	3	b.	b.	PROPN
ajis02-298	409	4	and	and	CCONJ
ajis02-298	409	5	stavridou	stavridou	ADJ
ajis02-298	409	6	,	,	PUNCT
ajis02-298	409	7	v.	v.	PROPN
ajis02-298	409	8	(	(	PUNCT
ajis02-298	409	9	1997	1997	NUM
ajis02-298	409	10	)	)	PUNCT
ajis02-298	409	11	.	.	PUNCT
ajis02-298	410	1	formal	formal	ADJ
ajis02-298	410	2	requirements	requirement	NOUN
ajis02-298	410	3	analysis	analysis	NOUN
ajis02-298	410	4	of	of	ADP
ajis02-298	410	5	an	an	DET
ajis02-298	410	6	avionics	avionic	NOUN
ajis02-298	410	7	control	control	NOUN
ajis02-298	410	8	system	system	NOUN
ajis02-298	410	9	,	,	PUNCT
ajis02-298	410	10	volume	volume	NOUN
ajis02-298	410	11	23	23	NUM
ajis02-298	410	12	of	of	ADP
ajis02-298	410	13	ieee	ieee	NOUN
ajis02-298	410	14	transactions	transaction	NOUN
ajis02-298	410	15	on	on	ADP
ajis02-298	410	16	software	software	NOUN
ajis02-298	410	17	engineering	engineering	NOUN
ajis02-298	410	18	,	,	PUNCT
ajis02-298	410	19	pages	page	NOUN
ajis02-298	410	20	267	267	NUM
ajis02-298	410	21	-	-	SYM
ajis02-298	410	22	278	278	NUM
ajis02-298	410	23	.	.	PUNCT
ajis02-298	411	1	easterbrook	easterbrook	PROPN
ajis02-298	411	2	,	,	PUNCT
ajis02-298	411	3	s.	s.	PROPN
ajis02-298	411	4	,	,	PUNCT
ajis02-298	411	5	lutz	lutz	PROPN
ajis02-298	411	6	,	,	PUNCT
ajis02-298	411	7	r.	r.	PROPN
ajis02-298	411	8	,	,	PUNCT
ajis02-298	411	9	covington	covington	PROPN
ajis02-298	411	10	,	,	PUNCT
ajis02-298	411	11	r.	r.	PROPN
ajis02-298	411	12	,	,	PUNCT
ajis02-298	411	13	kelly	kelly	PROPN
ajis02-298	411	14	,	,	PUNCT
ajis02-298	411	15	j.	j.	PROPN
ajis02-298	411	16	,	,	PUNCT
ajis02-298	411	17	ampo	ampo	PROPN
ajis02-298	411	18	,	,	PUNCT
ajis02-298	411	19	y.	y.	PROPN
ajis02-298	411	20	,	,	PUNCT
ajis02-298	411	21	and	and	CCONJ
ajis02-298	411	22	hamilton	hamilton	PROPN
ajis02-298	411	23	,	,	PUNCT
ajis02-298	411	24	d.	d.	PROPN
ajis02-298	411	25	(	(	PUNCT
ajis02-298	411	26	1998	1998	NUM
ajis02-298	411	27	)	)	PUNCT
ajis02-298	411	28	.	.	PUNCT
ajis02-298	412	1	experiences	experience	NOUN
ajis02-298	412	2	using	use	VERB
ajis02-298	412	3	lightweight	lightweight	ADJ
ajis02-298	412	4	formal	formal	ADJ
ajis02-298	412	5	methods	method	NOUN
ajis02-298	412	6	for	for	ADP
ajis02-298	412	7	requirements	requirement	NOUN
ajis02-298	412	8	modeling	modeling	NOUN
ajis02-298	412	9	,	,	PUNCT
ajis02-298	412	10	volume	volume	NOUN
ajis02-298	412	11	24	24	NUM
ajis02-298	412	12	of	of	ADP
ajis02-298	412	13	ieee	ieee	NOUN
ajis02-298	412	14	transactions	transaction	NOUN
ajis02-298	412	15	on	on	ADP
ajis02-298	412	16	software	software	NOUN
ajis02-298	412	17	engineering	engineering	NOUN
ajis02-298	412	18	,	,	PUNCT
ajis02-298	412	19	pages	page	NOUN
ajis02-298	412	20	4	4	NUM
ajis02-298	412	21	-	-	SYM
ajis02-298	412	22	14	14	NUM
ajis02-298	412	23	.	.	PUNCT
ajis02-298	413	1	elmstrom	elmstrom	PROPN
ajis02-298	413	2	,	,	PUNCT
ajis02-298	413	3	r.	r.	PROPN
ajis02-298	413	4	,	,	PUNCT
ajis02-298	413	5	larsen	larsen	PROPN
ajis02-298	413	6	,	,	PUNCT
ajis02-298	413	7	p.	p.	PROPN
ajis02-298	413	8	g.	g.	PROPN
ajis02-298	413	9	,	,	PUNCT
ajis02-298	413	10	and	and	CCONJ
ajis02-298	413	11	lassen	lassen	PROPN
ajis02-298	413	12	,	,	PUNCT
ajis02-298	413	13	p.	p.	PROPN
ajis02-298	413	14	b.	b.	PROPN
ajis02-298	414	1	(	(	PUNCT
ajis02-298	414	2	1994	1994	NUM
ajis02-298	414	3	)	)	PUNCT
ajis02-298	414	4	.	.	PUNCT
ajis02-298	415	1	the	the	DET
ajis02-298	415	2	ifad	ifad	ADJ
ajis02-298	415	3	vdm	vdm	NOUN
ajis02-298	415	4	-	-	PUNCT
ajis02-298	415	5	sl	sl	NOUN
ajis02-298	415	6	toolbox	toolbox	NOUN
ajis02-298	415	7	:	:	PUNCT
ajis02-298	415	8	a	a	DET
ajis02-298	415	9	practical	practical	ADJ
ajis02-298	415	10	approach	approach	NOUN
ajis02-298	415	11	to	to	ADP
ajis02-298	415	12	formal	formal	ADJ
ajis02-298	415	13	specifications	specification	NOUN
ajis02-298	415	14	,	,	PUNCT
ajis02-298	415	15	volume	volume	NOUN
ajis02-298	415	16	29	29	NUM
ajis02-298	415	17	of	of	ADP
ajis02-298	415	18	acm	acm	PROPN
ajis02-298	415	19	sigplan	sigplan	NOUN
ajis02-298	415	20	notices	notice	NOUN
ajis02-298	415	21	,	,	PUNCT
ajis02-298	415	22	pages	page	NOUN
ajis02-298	415	23	77	77	NUM
ajis02-298	415	24	-	-	SYM
ajis02-298	415	25	80	80	NUM
ajis02-298	415	26	.	.	PUNCT
ajis02-298	416	1	fitzgerald	fitzgerald	PROPN
ajis02-298	416	2	,	,	PUNCT
ajis02-298	416	3	j.	j.	PROPN
ajis02-298	416	4	and	and	CCONJ
ajis02-298	416	5	larsen	larsen	PROPN
ajis02-298	416	6	,	,	PUNCT
ajis02-298	416	7	p.	p.	NOUN
ajis02-298	416	8	g.	g.	PROPN
ajis02-298	416	9	(	(	PUNCT
ajis02-298	416	10	1998	1998	NUM
ajis02-298	416	11	)	)	PUNCT
ajis02-298	416	12	.	.	PUNCT
ajis02-298	417	1	modelling	model	VERB
ajis02-298	417	2	systems	system	NOUN
ajis02-298	417	3	practical	practical	ADJ
ajis02-298	417	4	tools	tool	NOUN
ajis02-298	417	5	and	and	CCONJ
ajis02-298	417	6	techniques	technique	NOUN
ajis02-298	417	7	in	in	ADP
ajis02-298	417	8	software	software	NOUN
ajis02-298	417	9	development	development	NOUN
ajis02-298	417	10	.	.	PUNCT
ajis02-298	418	1	cambridge	cambridge	PROPN
ajis02-298	418	2	university	university	PROPN
ajis02-298	418	3	press	press	NOUN
ajis02-298	418	4	,	,	PUNCT
ajis02-298	418	5	the	the	DET
ajis02-298	418	6	edinburgh	edinburgh	PROPN
ajis02-298	418	7	building	building	PROPN
ajis02-298	418	8	,	,	PUNCT
ajis02-298	418	9	cambridge	cambridge	PROPN
ajis02-298	418	10	cb2	cb2	PROPN
ajis02-298	418	11	2ru	2ru	PROPN
ajis02-298	418	12	,	,	PUNCT
ajis02-298	418	13	uk	uk	PROPN
ajis02-298	418	14	.	.	PROPN
ajis02-298	418	15	heimdahl	heimdahl	PROPN
ajis02-298	418	16	,	,	PUNCT
ajis02-298	418	17	m.	m.	NOUN
ajis02-298	418	18	p.	p.	PROPN
ajis02-298	418	19	e.	e.	PROPN
ajis02-298	418	20	and	and	CCONJ
ajis02-298	418	21	czerny	czerny	PROPN
ajis02-298	418	22	,	,	PUNCT
ajis02-298	418	23	b.	b.	PROPN
ajis02-298	418	24	j.	j.	PROPN
ajis02-298	418	25	(	(	PUNCT
ajis02-298	418	26	1996	1996	NUM
ajis02-298	418	27	)	)	PUNCT
ajis02-298	418	28	.	.	PUNCT
ajis02-298	419	1	using	use	VERB
ajis02-298	419	2	pvs	pvs	PROPN
ajis02-298	419	3	to	to	PART
ajis02-298	419	4	analyze	analyze	VERB
ajis02-298	419	5	hierarchical	hierarchical	ADJ
ajis02-298	419	6	state	state	NOUN
ajis02-298	419	7	-	-	PUNCT
ajis02-298	419	8	based	base	VERB
ajis02-298	419	9	requirements	requirement	NOUN
ajis02-298	419	10	for	for	ADP
ajis02-298	419	11	completeness	completeness	NOUN
ajis02-298	419	12	and	and	CCONJ
ajis02-298	419	13	consistency	consistency	NOUN
ajis02-298	419	14	.	.	PUNCT
ajis02-298	420	1	in	in	ADP
ajis02-298	420	2	ieee	ieee	NOUN
ajis02-298	420	3	high	high	ADJ
ajis02-298	420	4	-	-	PUNCT
ajis02-298	420	5	assurance	assurance	NOUN
ajis02-298	420	6	systems	system	NOUN
ajis02-298	420	7	engineering	engineering	NOUN
ajis02-298	420	8	workshop	workshop	NOUN
ajis02-298	420	9	(	(	PUNCT
ajis02-298	420	10	hase	hase	VERB
ajis02-298	420	11	'	'	NUM
ajis02-298	420	12	96	96	NUM
ajis02-298	420	13	)	)	PUNCT
ajis02-298	420	14	,	,	PUNCT
ajis02-298	420	15	niagara	niagara	PROPN
ajis02-298	420	16	on	on	ADP
ajis02-298	420	17	the	the	DET
ajis02-298	420	18	lake	lake	NOUN
ajis02-298	420	19	,	,	PUNCT
ajis02-298	420	20	canada	canada	PROPN
ajis02-298	420	21	,	,	PUNCT
ajis02-298	420	22	pages	page	VERB
ajis02-298	420	23	252	252	NUM
ajis02-298	420	24	-	-	SYM
ajis02-298	420	25	262	262	NUM
ajis02-298	420	26	.	.	PUNCT
ajis02-298	421	1	heitmeyer	heitmeyer	NOUN
ajis02-298	421	2	,	,	PUNCT
ajis02-298	421	3	c.	c.	PROPN
ajis02-298	421	4	(	(	PUNCT
ajis02-298	421	5	1998	1998	NUM
ajis02-298	421	6	)	)	PUNCT
ajis02-298	421	7	.	.	PUNCT
ajis02-298	422	1	on	on	ADP
ajis02-298	422	2	the	the	DET
ajis02-298	422	3	need	need	NOUN
ajis02-298	422	4	for	for	ADP
ajis02-298	422	5	"	"	PUNCT
ajis02-298	422	6	practical	practical	ADJ
ajis02-298	422	7	"	"	PUNCT
ajis02-298	422	8	formal	formal	ADJ
ajis02-298	422	9	methods	method	NOUN
ajis02-298	422	10	.	.	PUNCT
ajis02-298	423	1	in	in	ADP
ajis02-298	423	2	ravn	ravn	NOUN
ajis02-298	423	3	,	,	PUNCT
ajis02-298	423	4	a.	a.	NOUN
ajis02-298	423	5	p.	p.	NOUN
ajis02-298	423	6	and	and	CCONJ
ajis02-298	423	7	rischel	rischel	PROPN
ajis02-298	423	8	,	,	PUNCT
ajis02-298	423	9	h.	h.	PROPN
ajis02-298	423	10	,	,	PUNCT
ajis02-298	423	11	editors	editor	NOUN
ajis02-298	423	12	,	,	PUNCT
ajis02-298	423	13	proceedings	proceeding	NOUN
ajis02-298	423	14	of	of	ADP
ajis02-298	423	15	the	the	DET
ajis02-298	423	16	fifth	fifth	ADJ
ajis02-298	423	17	international	international	ADJ
ajis02-298	423	18	symposium	symposium	NOUN
ajis02-298	423	19	on	on	ADP
ajis02-298	423	20	formal	formal	ADJ
ajis02-298	423	21	techniques	technique	NOUN
ajis02-298	423	22	in	in	ADP
ajis02-298	423	23	realtime	realtime	NOUN
ajis02-298	423	24	and	and	CCONJ
ajis02-298	423	25	faulttolerant	faulttolerant	ADJ
ajis02-298	423	26	systems	system	NOUN
ajis02-298	423	27	(	(	PUNCT
ajis02-298	423	28	ftrtft'98	ftrtft'98	NOUN
ajis02-298	423	29	)	)	PUNCT
ajis02-298	423	30	,	,	PUNCT
ajis02-298	423	31	lyngby	lyngby	PROPN
ajis02-298	423	32	,	,	PUNCT
ajis02-298	423	33	denmark	denmark	PROPN
ajis02-298	423	34	,	,	PUNCT
ajis02-298	423	35	volume	volume	NOUN
ajis02-298	423	36	1486	1486	NUM
ajis02-298	423	37	of	of	ADP
ajis02-298	423	38	lecture	lecture	NOUN
ajis02-298	423	39	notes	note	NOUN
ajis02-298	423	40	in	in	ADP
ajis02-298	423	41	computer	computer	NOUN
ajis02-298	423	42	science	science	NOUN
ajis02-298	423	43	,	,	PUNCT
ajis02-298	423	44	pages	page	NOUN
ajis02-298	423	45	18-	18-	NUM
ajis02-298	423	46	?	?	PUNCT
ajis02-298	423	47	?	?	PUNCT
ajis02-298	424	1	springer	springer	NOUN
ajis02-298	424	2	-	-	PUNCT
ajis02-298	424	3	verlag	verlag	PROPN
ajis02-298	424	4	.	.	PUNCT
ajis02-298	425	1	hoare	hoare	PROPN
ajis02-298	425	2	,	,	PUNCT
ajis02-298	425	3	c.	c.	PROPN
ajis02-298	425	4	a.	a.	PROPN
ajis02-298	425	5	r.	r.	PROPN
ajis02-298	425	6	(	(	PUNCT
ajis02-298	425	7	1996	1996	NUM
ajis02-298	425	8	)	)	PUNCT
ajis02-298	425	9	.	.	PUNCT
ajis02-298	426	1	how	how	SCONJ
ajis02-298	426	2	did	do	AUX
ajis02-298	426	3	software	software	NOUN
ajis02-298	426	4	get	get	VERB
ajis02-298	426	5	so	so	ADV
ajis02-298	426	6	reliable	reliable	ADJ
ajis02-298	426	7	without	without	ADP
ajis02-298	426	8	proof	proof	NOUN
ajis02-298	426	9	?	?	PUNCT
ajis02-298	427	1	in	in	ADP
ajis02-298	427	2	gaudel	gaudel	PROPN
ajis02-298	427	3	,	,	PUNCT
ajis02-298	427	4	m.-c	m.-c	NOUN
ajis02-298	427	5	.	.	PUNCT
ajis02-298	428	1	and	and	CCONJ
ajis02-298	428	2	woodcock	woodcock	NOUN
ajis02-298	428	3	,	,	PUNCT
ajis02-298	428	4	j.	j.	PROPN
ajis02-298	428	5	,	,	PUNCT
ajis02-298	428	6	editors	editor	NOUN
ajis02-298	428	7	,	,	PUNCT
ajis02-298	428	8	fme	fme	NOUN
ajis02-298	428	9	'	'	PROPN
ajis02-298	428	10	96	96	NUM
ajis02-298	428	11	:	:	PUNCT
ajis02-298	428	12	industrial	industrial	ADJ
ajis02-298	428	13	benefit	benefit	NOUN
ajis02-298	428	14	and	and	CCONJ
ajis02-298	428	15	advances	advance	NOUN
ajis02-298	428	16	in	in	ADP
ajis02-298	428	17	formal	formal	ADJ
ajis02-298	428	18	methods	method	NOUN
ajis02-298	428	19	,	,	PUNCT
ajis02-298	428	20	volume	volume	NOUN
ajis02-298	428	21	1051	1051	NUM
ajis02-298	428	22	of	of	ADP
ajis02-298	428	23	lecture	lecture	NOUN
ajis02-298	428	24	notes	note	NOUN
ajis02-298	428	25	in	in	ADP
ajis02-298	428	26	computer	computer	NOUN
ajis02-298	428	27	science	science	NOUN
ajis02-298	428	28	,	,	PUNCT
ajis02-298	428	29	pages	page	NOUN
ajis02-298	428	30	1	1	NUM
ajis02-298	428	31	-	-	SYM
ajis02-298	428	32	17	17	NUM
ajis02-298	428	33	.	.	PUNCT
ajis02-298	428	34	springer	springer	NOUN
ajis02-298	428	35	-	-	PUNCT
ajis02-298	428	36	verlag	verlag	PROPN
ajis02-298	428	37	.	.	PUNCT
ajis02-298	428	38	holzmann	holzmann	PROPN
ajis02-298	428	39	,	,	PUNCT
ajis02-298	428	40	g.	g.	PROPN
ajis02-298	428	41	(	(	PUNCT
ajis02-298	428	42	1997	1997	NUM
ajis02-298	428	43	)	)	PUNCT
ajis02-298	428	44	.	.	PUNCT
ajis02-298	429	1	the	the	DET
ajis02-298	429	2	model	model	NOUN
ajis02-298	429	3	checker	checker	NOUN
ajis02-298	429	4	spin	spin	NOUN
ajis02-298	429	5	.	.	PUNCT
ajis02-298	430	1	ieee	ieee	PROPN
ajis02-298	430	2	trans	trans	PROPN
ajis02-298	430	3	,	,	PUNCT
ajis02-298	430	4	on	on	ADP
ajis02-298	430	5	software	software	NOUN
ajis02-298	430	6	engineering	engineering	NOUN
ajis02-298	430	7	,	,	PUNCT
ajis02-298	430	8	23(5):279	23(5):279	NOUN
ajis02-298	430	9	-	-	PUNCT
ajis02-298	430	10	295	295	NUM
ajis02-298	430	11	.	.	PUNCT
ajis02-298	431	1	special	special	ADJ
ajis02-298	431	2	issue	issue	NOUN
ajis02-298	431	3	on	on	ADP
ajis02-298	431	4	formal	formal	ADJ
ajis02-298	431	5	methods	method	NOUN
ajis02-298	431	6	in	in	ADP
ajis02-298	431	7	software	software	NOUN
ajis02-298	431	8	practice	practice	NOUN
ajis02-298	431	9	.	.	PUNCT
ajis02-298	432	1	kellomaki	kellomaki	NOUN
ajis02-298	432	2	,	,	PUNCT
ajis02-298	432	3	p.	p.	NOUN
ajis02-298	432	4	(	(	PUNCT
ajis02-298	432	5	1997	1997	NUM
ajis02-298	432	6	)	)	PUNCT
ajis02-298	432	7	.	.	PUNCT
ajis02-298	433	1	verification	verification	NOUN
ajis02-298	433	2	of	of	ADP
ajis02-298	433	3	reactive	reactive	ADJ
ajis02-298	433	4	systems	system	NOUN
ajis02-298	433	5	using	use	VERB
ajis02-298	433	6	disco	disco	PROPN
ajis02-298	433	7	and	and	CCONJ
ajis02-298	433	8	pvs	pvs	PROPN
ajis02-298	433	9	.	.	PUNCT
ajis02-298	434	1	in	in	ADP
ajis02-298	434	2	fitzgerald	fitzgerald	PROPN
ajis02-298	434	3	,	,	PUNCT
ajis02-298	434	4	j.	j.	PROPN
ajis02-298	434	5	,	,	PUNCT
ajis02-298	434	6	jones	jones	PROPN
ajis02-298	434	7	,	,	PUNCT
ajis02-298	434	8	c.	c.	PROPN
ajis02-298	434	9	b.	b.	PROPN
ajis02-298	434	10	,	,	PUNCT
ajis02-298	434	11	and	and	CCONJ
ajis02-298	434	12	lucas	lucas	PROPN
ajis02-298	434	13	,	,	PUNCT
ajis02-298	434	14	p.	p.	NOUN
ajis02-298	434	15	,	,	PUNCT
ajis02-298	434	16	editors	editor	NOUN
ajis02-298	434	17	,	,	PUNCT
ajis02-298	434	18	fme'97	fme'97	NUM
ajis02-298	434	19	:	:	PUNCT
ajis02-298	434	20	industrial	industrial	ADJ
ajis02-298	434	21	applications	application	NOUN
ajis02-298	434	22	and	and	CCONJ
ajis02-298	434	23	strengthened	strengthen	VERB
ajis02-298	434	24	foundations	foundation	NOUN
ajis02-298	434	25	of	of	ADP
ajis02-298	434	26	formal	formal	ADJ
ajis02-298	434	27	methods	method	NOUN
ajis02-298	434	28	(	(	PUNCT
ajis02-298	434	29	proc	proc	NOUN
ajis02-298	434	30	.	.	PUNCT
ajis02-298	435	1	4th	4th	PROPN
ajis02-298	435	2	intl	intl	PROPN
ajis02-298	435	3	.	.	PUNCT
ajis02-298	436	1	symposium	symposium	NOUN
ajis02-298	436	2	of	of	ADP
ajis02-298	436	3	formal	formal	ADJ
ajis02-298	436	4	methods	method	NOUN
ajis02-298	436	5	europe	europe	PROPN
ajis02-298	436	6	,	,	PUNCT
ajis02-298	436	7	graz	graz	PROPN
ajis02-298	436	8	,	,	PUNCT
ajis02-298	436	9	austria	austria	PROPN
ajis02-298	436	10	,	,	PUNCT
ajis02-298	436	11	september	september	PROPN
ajis02-298	436	12	1997	1997	NUM
ajis02-298	436	13	)	)	PUNCT
ajis02-298	436	14	,	,	PUNCT
ajis02-298	436	15	volume	volume	NOUN
ajis02-298	436	16	1313	1313	NUM
ajis02-298	436	17	of	of	ADP
ajis02-298	436	18	lecture	lecture	NOUN
ajis02-298	436	19	notes	note	NOUN
ajis02-298	436	20	in	in	ADP
ajis02-298	436	21	computer	computer	NOUN
ajis02-298	436	22	science	science	NOUN
ajis02-298	436	23	,	,	PUNCT
ajis02-298	436	24	pages	page	NOUN
ajis02-298	436	25	589	589	NUM
ajis02-298	436	26	-	-	SYM
ajis02-298	436	27	604	604	NUM
ajis02-298	436	28	.	.	PUNCT
ajis02-298	437	1	springerverlag	springerverlag	NOUN
ajis02-298	437	2	.	.	PUNCT
ajis02-298	438	1	isbn	isbn	ADJ
ajis02-298	438	2	3	3	NUM
ajis02-298	438	3	-	-	SYM
ajis02-298	438	4	540	540	NUM
ajis02-298	438	5	-	-	PUNCT
ajis02-298	438	6	63533	63533	NUM
ajis02-298	438	7	-	-	PUNCT
ajis02-298	438	8	5	5	NUM
ajis02-298	438	9	.	.	NOUN
ajis02-298	438	10	156	156	NUM
ajis02-298	438	11	kramer	kramer	PROPN
ajis02-298	438	12	,	,	PUNCT
ajis02-298	438	13	j.	j.	PROPN
ajis02-298	438	14	,	,	PUNCT
ajis02-298	438	15	finkelstein	finkelstein	PROPN
ajis02-298	438	16	,	,	PUNCT
ajis02-298	438	17	a.	a.	NOUN
ajis02-298	438	18	,	,	PUNCT
ajis02-298	438	19	and	and	CCONJ
ajis02-298	438	20	nuseibeh	nuseibeh	NOUN
ajis02-298	438	21	,	,	PUNCT
ajis02-298	438	22	b.	b.	PROPN
ajis02-298	438	23	(	(	PUNCT
ajis02-298	438	24	1996	1996	NUM
ajis02-298	438	25	)	)	PUNCT
ajis02-298	438	26	.	.	PUNCT
ajis02-298	439	1	method	method	NOUN
ajis02-298	439	2	integration	integration	NOUN
ajis02-298	439	3	and	and	CCONJ
ajis02-298	439	4	support	support	NOUN
ajis02-298	439	5	for	for	ADP
ajis02-298	439	6	distributed	distribute	VERB
ajis02-298	439	7	software	software	NOUN
ajis02-298	439	8	development	development	NOUN
ajis02-298	439	9	:	:	PUNCT
ajis02-298	439	10	an	an	DET
ajis02-298	439	11	overview	overview	NOUN
ajis02-298	439	12	,	,	PUNCT
ajis02-298	439	13	volume	volume	NOUN
ajis02-298	439	14	1078	1078	NUM
ajis02-298	439	15	of	of	ADP
ajis02-298	439	16	lecture	lecture	NOUN
ajis02-298	439	17	notes	note	NOUN
ajis02-298	439	18	in	in	ADP
ajis02-298	439	19	computer	computer	NOUN
ajis02-298	439	20	science	science	NOUN
ajis02-298	439	21	,	,	PUNCT
ajis02-298	439	22	pages	page	NOUN
ajis02-298	439	23	115-	115-	NUM
ajis02-298	439	24	?	?	PUNCT
ajis02-298	439	25	?	?	PUNCT
ajis02-298	439	26	,	,	PUNCT
ajis02-298	439	27	baltimore	baltimore	PROPN
ajis02-298	439	28	,	,	PUNCT
ajis02-298	439	29	md	md	PROPN
ajis02-298	439	30	.	.	PROPN
ajis02-298	439	31	springer	springer	PROPN
ajis02-298	439	32	-	-	PUNCT
ajis02-298	439	33	verlag	verlag	PROPN
ajis02-298	439	34	.	.	PUNCT
ajis02-298	440	1	lutz	lutz	PROPN
ajis02-298	440	2	,	,	PUNCT
ajis02-298	440	3	r.	r.	PROPN
ajis02-298	440	4	and	and	CCONJ
ajis02-298	440	5	ampo	ampo	PROPN
ajis02-298	440	6	,	,	PUNCT
ajis02-298	440	7	y.	y.	PROPN
ajis02-298	440	8	(	(	PUNCT
ajis02-298	440	9	1994	1994	NUM
ajis02-298	440	10	)	)	PUNCT
ajis02-298	440	11	.	.	PUNCT
ajis02-298	441	1	experience	experience	NOUN
ajis02-298	441	2	report	report	NOUN
ajis02-298	441	3	:	:	PUNCT
ajis02-298	441	4	using	use	VERB
ajis02-298	441	5	formal	formal	ADJ
ajis02-298	441	6	methods	method	NOUN
ajis02-298	441	7	for	for	ADP
ajis02-298	441	8	requirements	requirement	NOUN
ajis02-298	441	9	analysis	analysis	NOUN
ajis02-298	441	10	of	of	ADP
ajis02-298	441	11	critical	critical	ADJ
ajis02-298	441	12	spacecraft	spacecraft	NOUN
ajis02-298	441	13	software	software	NOUN
ajis02-298	441	14	.	.	PUNCT
ajis02-298	442	1	in	in	ADP
ajis02-298	442	2	proceedings	proceeding	NOUN
ajis02-298	442	3	of	of	ADP
ajis02-298	442	4	the	the	DET
ajis02-298	442	5	19th	19th	ADJ
ajis02-298	442	6	annual	annual	ADJ
ajis02-298	442	7	software	software	NOUN
ajis02-298	442	8	engineering	engineering	NOUN
ajis02-298	442	9	workshop	workshop	NOUN
ajis02-298	442	10	,	,	PUNCT
ajis02-298	442	11	pages	page	NOUN
ajis02-298	442	12	231	231	NUM
ajis02-298	442	13	-	-	SYM
ajis02-298	442	14	248	248	NUM
ajis02-298	442	15	,	,	PUNCT
ajis02-298	442	16	greenbelt	greenbelt	PROPN
ajis02-298	442	17	,	,	PUNCT
ajis02-298	442	18	md	md	PROPN
ajis02-298	442	19	.	.	PROPN
ajis02-298	443	1	nasa	nasa	PROPN
ajis02-298	443	2	goddard	goddard	PROPN
ajis02-298	443	3	space	space	NOUN
ajis02-298	443	4	flight	flight	NOUN
ajis02-298	443	5	center	center	NOUN
ajis02-298	443	6	.	.	PUNCT
ajis02-298	444	1	miner	miner	NOUN
ajis02-298	444	2	,	,	PUNCT
ajis02-298	444	3	p.	p.	PROPN
ajis02-298	444	4	s.	s.	PROPN
ajis02-298	444	5	and	and	CCONJ
ajis02-298	444	6	johnson	johnson	PROPN
ajis02-298	444	7	,	,	PUNCT
ajis02-298	444	8	s.	s.	PROPN
ajis02-298	444	9	d.	d.	PROPN
ajis02-298	444	10	(	(	PUNCT
ajis02-298	444	11	1996	1996	NUM
ajis02-298	444	12	)	)	PUNCT
ajis02-298	444	13	.	.	PUNCT
ajis02-298	445	1	verification	verification	NOUN
ajis02-298	445	2	of	of	ADP
ajis02-298	445	3	an	an	DET
ajis02-298	445	4	optimized	optimize	VERB
ajis02-298	445	5	fault	fault	NOUN
ajis02-298	445	6	-	-	PUNCT
ajis02-298	445	7	tolerant	tolerant	ADJ
ajis02-298	445	8	clock	clock	NOUN
ajis02-298	445	9	synchronization	synchronization	NOUN
ajis02-298	445	10	circuit	circuit	NOUN
ajis02-298	445	11	:	:	PUNCT
ajis02-298	445	12	a	a	DET
ajis02-298	445	13	case	case	NOUN
ajis02-298	445	14	study	study	NOUN
ajis02-298	445	15	exploring	explore	VERB
ajis02-298	445	16	the	the	DET
ajis02-298	445	17	boundary	boundary	NOUN
ajis02-298	445	18	between	between	ADP
ajis02-298	445	19	formal	formal	ADJ
ajis02-298	445	20	reasoning	reasoning	NOUN
ajis02-298	445	21	systems	system	NOUN
ajis02-298	445	22	.	.	PUNCT
ajis02-298	446	1	in	in	ADP
ajis02-298	446	2	sheeran	sheeran	NOUN
ajis02-298	446	3	,	,	PUNCT
ajis02-298	446	4	m.	m.	NOUN
ajis02-298	446	5	and	and	CCONJ
ajis02-298	446	6	singh	singh	PROPN
ajis02-298	446	7	,	,	PUNCT
ajis02-298	446	8	s.	s.	PROPN
ajis02-298	446	9	,	,	PUNCT
ajis02-298	446	10	editors	editor	NOUN
ajis02-298	446	11	,	,	PUNCT
ajis02-298	446	12	designing	design	VERB
ajis02-298	446	13	correct	correct	ADJ
ajis02-298	446	14	circuits	circuit	NOUN
ajis02-298	446	15	,	,	PUNCT
ajis02-298	446	16	bastad	bastad	NOUN
ajis02-298	446	17	,	,	PUNCT
ajis02-298	446	18	sweden	sweden	PROPN
ajis02-298	446	19	.	.	PUNCT
ajis02-298	446	20	springerverlag	springerverlag	PROPN
ajis02-298	446	21	electronic	electronic	ADJ
ajis02-298	446	22	workshops	workshop	NOUN
ajis02-298	446	23	in	in	ADP
ajis02-298	446	24	computing	computing	NOUN
ajis02-298	446	25	.	.	PUNCT
ajis02-298	447	1	nasa	nasa	PROPN
ajis02-298	447	2	(	(	PUNCT
ajis02-298	447	3	1997	1997	NUM
ajis02-298	447	4	)	)	PUNCT
ajis02-298	447	5	.	.	PUNCT
ajis02-298	448	1	formal	formal	ADJ
ajis02-298	448	2	methods	method	NOUN
ajis02-298	448	3	,	,	PUNCT
ajis02-298	448	4	specification	specification	NOUN
ajis02-298	448	5	and	and	CCONJ
ajis02-298	448	6	verification	verification	NOUN
ajis02-298	448	7	guidebook	guidebook	NOUN
ajis02-298	448	8	for	for	ADP
ajis02-298	448	9	verification	verification	NOUN
ajis02-298	448	10	of	of	ADP
ajis02-298	448	11	software	software	NOUN
ajis02-298	448	12	and	and	CCONJ
ajis02-298	448	13	computer	computer	NOUN
ajis02-298	448	14	systems	system	NOUN
ajis02-298	448	15	.	.	PUNCT
ajis02-298	449	1	vol	vol	NOUN
ajis02-298	449	2	2	2	NUM
ajis02-298	449	3	:	:	PUNCT
ajis02-298	449	4	a	a	DET
ajis02-298	449	5	practitioner	practitioner	NOUN
ajis02-298	449	6	's	's	PART
ajis02-298	449	7	companion	companion	NOUN
ajis02-298	449	8	.	.	PUNCT
ajis02-298	450	1	nasa	nasa	PROPN
ajis02-298	450	2	,	,	PUNCT
ajis02-298	450	3	washington	washington	PROPN
ajis02-298	450	4	,	,	PUNCT
ajis02-298	450	5	dc	dc	PROPN
ajis02-298	450	6	,	,	PUNCT
ajis02-298	450	7	usa	usa	PROPN
ajis02-298	450	8	.	.	PROPN
ajis02-298	450	9	owre	owre	PROPN
ajis02-298	450	10	,	,	PUNCT
ajis02-298	450	11	s.	s.	PROPN
ajis02-298	450	12	,	,	PUNCT
ajis02-298	450	13	rushby	rushby	PROPN
ajis02-298	450	14	,	,	PUNCT
ajis02-298	450	15	j.	j.	PROPN
ajis02-298	450	16	m.	m.	PROPN
ajis02-298	450	17	,	,	PUNCT
ajis02-298	450	18	and	and	CCONJ
ajis02-298	450	19	shankar	shankar	PROPN
ajis02-298	450	20	,	,	PUNCT
ajis02-298	450	21	n.	n.	PROPN
ajis02-298	450	22	(	(	PUNCT
ajis02-298	450	23	1992	1992	NUM
ajis02-298	450	24	)	)	PUNCT
ajis02-298	450	25	.	.	PUNCT
ajis02-298	451	1	pvs	pvs	PROPN
ajis02-298	451	2	:	:	PUNCT
ajis02-298	451	3	a	a	DET
ajis02-298	451	4	prototype	prototype	NOUN
ajis02-298	451	5	verification	verification	NOUN
ajis02-298	451	6	system	system	NOUN
ajis02-298	451	7	.	.	PUNCT
ajis02-298	452	1	in	in	ADP
ajis02-298	452	2	kapur	kapur	PROPN
ajis02-298	452	3	,	,	PUNCT
ajis02-298	452	4	d.	d.	PROPN
ajis02-298	452	5	,	,	PUNCT
ajis02-298	452	6	editor	editor	NOUN
ajis02-298	452	7	,	,	PUNCT
ajis02-298	452	8	llth	llth	PROPN
ajis02-298	452	9	international	international	ADJ
ajis02-298	452	10	conference	conference	NOUN
ajis02-298	452	11	on	on	ADP
ajis02-298	452	12	automated	automate	VERB
ajis02-298	452	13	deduction	deduction	NOUN
ajis02-298	452	14	(	(	PUNCT
ajis02-298	452	15	cade	cade	NOUN
ajis02-298	452	16	)	)	PUNCT
ajis02-298	452	17	,	,	PUNCT
ajis02-298	452	18	volume	volume	NOUN
ajis02-298	452	19	607	607	NUM
ajis02-298	452	20	of	of	ADP
ajis02-298	452	21	lecture	lecture	NOUN
ajis02-298	452	22	notes	note	NOUN
ajis02-298	452	23	in	in	ADP
ajis02-298	452	24	artificial	artificial	ADJ
ajis02-298	452	25	intelligence	intelligence	NOUN
ajis02-298	452	26	,	,	PUNCT
ajis02-298	452	27	pages	page	NOUN
ajis02-298	452	28	748	748	NUM
ajis02-298	452	29	-	-	SYM
ajis02-298	452	30	752	752	NUM
ajis02-298	452	31	,	,	PUNCT
ajis02-298	452	32	saratoga	saratoga	PROPN
ajis02-298	452	33	,	,	PUNCT
ajis02-298	452	34	ny	ny	PROPN
ajis02-298	452	35	.	.	PROPN
ajis02-298	452	36	springer	springer	PROPN
ajis02-298	452	37	-	-	PUNCT
ajis02-298	452	38	verlag	verlag	PROPN
ajis02-298	452	39	.	.	PUNCT
ajis02-298	452	40	plat	plat	NOUN
ajis02-298	452	41	,	,	PUNCT
ajis02-298	452	42	n.	n.	NOUN
ajis02-298	452	43	and	and	CCONJ
ajis02-298	452	44	larsen	larsen	PROPN
ajis02-298	452	45	,	,	PUNCT
ajis02-298	452	46	p.	p.	NOUN
ajis02-298	452	47	g.	g.	PROPN
ajis02-298	452	48	(	(	PUNCT
ajis02-298	452	49	1992	1992	NUM
ajis02-298	452	50	)	)	PUNCT
ajis02-298	452	51	.	.	PUNCT
ajis02-298	453	1	an	an	DET
ajis02-298	453	2	overview	overview	NOUN
ajis02-298	453	3	of	of	ADP
ajis02-298	453	4	the	the	DET
ajis02-298	453	5	iso	iso	NOUN
ajis02-298	453	6	/	/	SYM
ajis02-298	453	7	vdm	vdm	NOUN
ajis02-298	453	8	-	-	PUNCT
ajis02-298	453	9	sl	sl	NOUN
ajis02-298	453	10	standard	standard	NOUN
ajis02-298	453	11	,	,	PUNCT
ajis02-298	453	12	volume	volume	NOUN
ajis02-298	453	13	27	27	NUM
ajis02-298	453	14	of	of	ADP
ajis02-298	453	15	sigplan	sigplan	NOUN
ajis02-298	453	16	notices	notice	NOUN
ajis02-298	453	17	,	,	PUNCT
ajis02-298	453	18	pages	page	NOUN
ajis02-298	453	19	76	76	NUM
ajis02-298	453	20	-	-	SYM
ajis02-298	453	21	82	82	NUM
ajis02-298	453	22	.	.	PUNCT
ajis02-298	454	1	poston	poston	PROPN
ajis02-298	454	2	,	,	PUNCT
ajis02-298	454	3	r.	r.	PROPN
ajis02-298	454	4	m.	m.	PROPN
ajis02-298	454	5	(	(	PUNCT
ajis02-298	454	6	1996	1996	NUM
ajis02-298	454	7	)	)	PUNCT
ajis02-298	454	8	.	.	PUNCT
ajis02-298	455	1	automating	automate	VERB
ajis02-298	455	2	specification	specification	NOUN
ajis02-298	455	3	-	-	PUNCT
ajis02-298	455	4	based	base	VERB
ajis02-298	455	5	software	software	NOUN
ajis02-298	455	6	testing	testing	NOUN
ajis02-298	455	7	.	.	PUNCT
ajis02-298	456	1	ieee	ieee	NOUN
ajis02-298	456	2	computer	computer	NOUN
ajis02-298	456	3	society	society	NOUN
ajis02-298	456	4	,	,	PUNCT
ajis02-298	456	5	los	los	PROPN
ajis02-298	456	6	alamitos	alamitos	PROPN
ajis02-298	456	7	.	.	PUNCT
ajis02-298	457	1	rajan	rajan	PROPN
ajis02-298	457	2	,	,	PUNCT
ajis02-298	457	3	s.	s.	PROPN
ajis02-298	457	4	p.	p.	PROPN
ajis02-298	457	5	and	and	CCONJ
ajis02-298	457	6	fujita	fujita	PROPN
ajis02-298	457	7	,	,	PUNCT
ajis02-298	457	8	m.	m.	NOUN
ajis02-298	457	9	(	(	PUNCT
ajis02-298	457	10	1997	1997	NUM
ajis02-298	457	11	)	)	PUNCT
ajis02-298	457	12	.	.	PUNCT
ajis02-298	458	1	atm	atm	PROPN
ajis02-298	458	2	switch	switch	PROPN
ajis02-298	458	3	design	design	NOUN
ajis02-298	458	4	:	:	PUNCT
ajis02-298	458	5	parametric	parametric	ADJ
ajis02-298	458	6	high	high	ADJ
ajis02-298	458	7	-	-	PUNCT
ajis02-298	458	8	level	level	NOUN
ajis02-298	458	9	modeling	modeling	NOUN
ajis02-298	458	10	and	and	CCONJ
ajis02-298	458	11	formal	formal	ADJ
ajis02-298	458	12	verification	verification	NOUN
ajis02-298	458	13	.	.	PUNCT
ajis02-298	459	1	in	in	ADP
ajis02-298	459	2	johnson	johnson	PROPN
ajis02-298	459	3	,	,	PUNCT
ajis02-298	459	4	m.	m.	NOUN
ajis02-298	459	5	,	,	PUNCT
ajis02-298	459	6	editor	editor	NOUN
ajis02-298	459	7	,	,	PUNCT
ajis02-298	459	8	algebraic	algebraic	ADJ
ajis02-298	459	9	methodology	methodology	NOUN
ajis02-298	459	10	and	and	CCONJ
ajis02-298	459	11	software	software	NOUN
ajis02-298	459	12	technology	technology	NOUN
ajis02-298	459	13	,	,	PUNCT
ajis02-298	459	14	amast'97	amast'97	PROPN
ajis02-298	459	15	,	,	PUNCT
ajis02-298	459	16	volume	volume	NOUN
ajis02-298	459	17	1349	1349	NUM
ajis02-298	459	18	of	of	ADP
ajis02-298	459	19	lecture	lecture	NOUN
ajis02-298	459	20	notes	note	NOUN
ajis02-298	459	21	in	in	ADP
ajis02-298	459	22	computer	computer	NOUN
ajis02-298	459	23	science	science	NOUN
ajis02-298	459	24	,	,	PUNCT
ajis02-298	459	25	pages	page	NOUN
ajis02-298	459	26	437	437	NUM
ajis02-298	459	27	-	-	SYM
ajis02-298	459	28	450	450	NUM
ajis02-298	459	29	,	,	PUNCT
ajis02-298	459	30	sydney	sydney	PROPN
ajis02-298	459	31	,	,	PUNCT
ajis02-298	459	32	australia	australia	PROPN
ajis02-298	459	33	.	.	PUNCT
ajis02-298	459	34	springer	springer	NOUN
ajis02-298	459	35	-	-	PUNCT
ajis02-298	459	36	verlag	verlag	PROPN
ajis02-298	459	37	.	.	PUNCT
ajis02-298	460	1	rushby	rushby	PROPN
ajis02-298	460	2	,	,	PUNCT
ajis02-298	460	3	j.	j.	PROPN
ajis02-298	460	4	and	and	CCONJ
ajis02-298	460	5	stringer	stringer	NOUN
ajis02-298	460	6	-	-	PUNCT
ajis02-298	460	7	calvert	calvert	PROPN
ajis02-298	460	8	,	,	PUNCT
ajis02-298	460	9	d.	d.	PROPN
ajis02-298	460	10	w.	w.	PROPN
ajis02-298	460	11	j.	j.	PROPN
ajis02-298	460	12	(	(	PUNCT
ajis02-298	460	13	1995	1995	NUM
ajis02-298	460	14	)	)	PUNCT
ajis02-298	460	15	.	.	PUNCT
ajis02-298	461	1	a	a	DET
ajis02-298	461	2	less	less	ADV
ajis02-298	461	3	elementary	elementary	ADJ
ajis02-298	461	4	tutorial	tutorial	NOUN
ajis02-298	461	5	for	for	ADP
ajis02-298	461	6	the	the	DET
ajis02-298	461	7	pvs	pvs	PROPN
ajis02-298	461	8	specification	specification	NOUN
ajis02-298	461	9	and	and	CCONJ
ajis02-298	461	10	verification	verification	NOUN
ajis02-298	461	11	system	system	NOUN
ajis02-298	461	12	.	.	PUNCT
ajis02-298	462	1	technical	technical	ADJ
ajis02-298	462	2	report	report	PROPN
ajis02-298	462	3	sri	sri	PROPN
ajis02-298	462	4	-	-	PUNCT
ajis02-298	462	5	csl-95	csl-95	NOUN
ajis02-298	462	6	-	-	PUNCT
ajis02-298	462	7	10	10	NUM
ajis02-298	462	8	,	,	PUNCT
ajis02-298	462	9	computer	computer	NOUN
ajis02-298	462	10	science	science	NOUN
ajis02-298	462	11	laboratory	laboratory	NOUN
ajis02-298	462	12	,	,	PUNCT
ajis02-298	462	13	sri	sri	PROPN
ajis02-298	462	14	international	international	PROPN
ajis02-298	462	15	,	,	PUNCT
ajis02-298	462	16	menlo	menlo	NOUN
ajis02-298	462	17	park	park	NOUN
ajis02-298	462	18	,	,	PUNCT
ajis02-298	462	19	ca	ca	PROPN
ajis02-298	462	20	.	.	PUNCT
ajis02-298	462	21	revised	revise	VERB
ajis02-298	462	22	,	,	PUNCT
ajis02-298	462	23	july	july	PROPN
ajis02-298	462	24	1996	1996	NUM
ajis02-298	462	25	.	.	PUNCT
ajis02-298	463	1	available	available	ADJ
ajis02-298	463	2	,	,	PUNCT
ajis02-298	463	3	with	with	ADP
ajis02-298	463	4	specification	specification	NOUN
ajis02-298	463	5	files	file	NOUN
ajis02-298	463	6	,	,	PUNCT
ajis02-298	463	7	at	at	ADP
ajis02-298	463	8	http://www.csl.sri.com/csl-9510.html	http://www.csl.sri.com/csl-9510.html	NOUN
ajis02-298	463	9	.	.	PUNCT
ajis02-298	464	1	shostak	shostak	PROPN
ajis02-298	464	2	,	,	PUNCT
ajis02-298	464	3	r.	r.	PROPN
ajis02-298	464	4	e.	e.	PROPN
ajis02-298	464	5	(	(	PUNCT
ajis02-298	464	6	1983	1983	NUM
ajis02-298	464	7	)	)	PUNCT
ajis02-298	464	8	.	.	PUNCT
ajis02-298	465	1	formal	formal	ADJ
ajis02-298	465	2	verification	verification	NOUN
ajis02-298	465	3	of	of	ADP
ajis02-298	465	4	circuit	circuit	NOUN
ajis02-298	465	5	designs	design	NOUN
ajis02-298	465	6	.	.	PUNCT
ajis02-298	466	1	in	in	ADP
ajis02-298	466	2	uehara	uehara	PROPN
ajis02-298	466	3	,	,	PUNCT
ajis02-298	466	4	t.	t.	NOUN
ajis02-298	466	5	and	and	CCONJ
ajis02-298	466	6	barbacci	barbacci	NOUN
ajis02-298	466	7	,	,	PUNCT
ajis02-298	466	8	m.	m.	NOUN
ajis02-298	466	9	,	,	PUNCT
ajis02-298	466	10	editors	editor	NOUN
ajis02-298	466	11	,	,	PUNCT
ajis02-298	466	12	computer	computer	NOUN
ajis02-298	466	13	hardware	hardware	NOUN
ajis02-298	466	14	description	description	NOUN
ajis02-298	466	15	languages	language	NOUN
ajis02-298	466	16	,	,	PUNCT
ajis02-298	466	17	pages	page	NOUN
ajis02-298	466	18	13	13	NUM
ajis02-298	466	19	-	-	SYM
ajis02-298	466	20	29	29	NUM
ajis02-298	466	21	.	.	PUNCT
ajis02-298	466	22	north	north	NOUN
ajis02-298	466	23	-	-	PUNCT
ajis02-298	466	24	holland	holland	PROPN
ajis02-298	466	25	.	.	PUNCT
ajis02-298	467	1	sommerville	sommerville	PROPN
ajis02-298	467	2	,	,	PUNCT
ajis02-298	467	3	i.	i.	PROPN
ajis02-298	467	4	and	and	CCONJ
ajis02-298	467	5	sawyer	sawyer	PROPN
ajis02-298	467	6	,	,	PUNCT
ajis02-298	467	7	p.	p.	NOUN
ajis02-298	467	8	(	(	PUNCT
ajis02-298	467	9	1997	1997	NUM
ajis02-298	467	10	)	)	PUNCT
ajis02-298	467	11	.	.	PUNCT
ajis02-298	468	1	requirements	requirement	NOUN
ajis02-298	468	2	engineering	engineering	NOUN
ajis02-298	468	3	.	.	PUNCT
ajis02-298	469	1	wiley	wiley	PROPN
ajis02-298	469	2	,	,	PUNCT
ajis02-298	469	3	chichester	chichester	PROPN
ajis02-298	469	4	.	.	PUNCT
ajis02-298	470	1	van	van	PROPN
ajis02-298	470	2	de	de	PROPN
ajis02-298	470	3	pol	pol	PROPN
ajis02-298	470	4	,	,	PUNCT
ajis02-298	470	5	j.	j.	PROPN
ajis02-298	470	6	,	,	PUNCT
ajis02-298	470	7	hooman	hooman	PROPN
ajis02-298	470	8	,	,	PUNCT
ajis02-298	470	9	j.	j.	PROPN
ajis02-298	470	10	,	,	PUNCT
ajis02-298	470	11	and	and	CCONJ
ajis02-298	470	12	de	de	PROPN
ajis02-298	470	13	jong	jong	PROPN
ajis02-298	470	14	,	,	PUNCT
ajis02-298	470	15	e.	e.	PROPN
ajis02-298	470	16	(	(	PUNCT
ajis02-298	470	17	1998	1998	NUM
ajis02-298	470	18	)	)	PUNCT
ajis02-298	470	19	.	.	PUNCT
ajis02-298	471	1	formal	formal	ADJ
ajis02-298	471	2	requirements	requirement	NOUN
ajis02-298	471	3	specification	specification	NOUN
ajis02-298	471	4	for	for	ADP
ajis02-298	471	5	command	command	NOUN
ajis02-298	471	6	and	and	CCONJ
ajis02-298	471	7	control	control	NOUN
ajis02-298	471	8	systems	system	NOUN
ajis02-298	471	9	.	.	PUNCT
ajis02-298	472	1	in	in	ADP
ajis02-298	472	2	engineering	engineering	NOUN
ajis02-298	472	3	of	of	ADP
ajis02-298	472	4	computer	computer	NOUN
ajis02-298	472	5	based	base	VERB
ajis02-298	472	6	systems	system	NOUN
ajis02-298	472	7	(	(	PUNCT
ajis02-298	472	8	ecbs	ecbs	NOUN
ajis02-298	472	9	)	)	PUNCT
ajis02-298	472	10	,	,	PUNCT
ajis02-298	472	11	pages	page	VERB
ajis02-298	472	12	37	37	NUM
ajis02-298	472	13	-	-	SYM
ajis02-298	472	14	44	44	NUM
ajis02-298	472	15	,	,	PUNCT
ajis02-298	472	16	jerusalem	jerusalem	PROPN
ajis02-298	472	17	,	,	PUNCT
ajis02-298	472	18	israel	israel	PROPN
ajis02-298	472	19	.	.	PUNCT
ajis02-298	473	1	ieee	ieee	PROPN
ajis02-298	473	2	computer	computer	NOUN
ajis02-298	473	3	society	society	NOUN
ajis02-298	473	4	.	.	PUNCT
ajis02-298	474	1	157	157	NUM