id	sid	eid	entity	type
expositions-1773	1	1	microsoft	ORG
expositions-1773	1	2	alvarez	PERSON
expositions-1773	1	3	8.1	CARDINAL
expositions-1773	1	4	2014	DATE
expositions-1773	1	5	issn	PERSON
expositions-1773	1	6	1747–5376	CARDINAL
expositions-1773	1	7	stardust	PERSON
expositions-1773	2	1	walter alvarez university	PERSON
expositions-1773	2	2	berkeley	GPE
expositions-1773	3	1	david christian	PERSON
expositions-1773	3	2	cynthia stokes brown	PERSON
expositions-1773	3	3	craig benjamin	PERSON
expositions-1773	3	4	2013	DATE
expositions-1773	3	5	first	ORDINAL
expositions-1773	4	1	berkeley	GPE
expositions-1773	7	1	christian	NORP
expositions-1773	7	2	three quarters	CARDINAL
expositions-1773	11	1	christian	NORP
expositions-1773	11	2	benjamin	PERSON
expositions-1773	13	1	stardust	PERSON
expositions-1773	13	2	carl sagan	PERSON
expositions-1773	13	3	1980	DATE
expositions-1773	14	1	sagan	PERSON
expositions-1773	14	2	stardust	PERSON
expositions-1773	15	1	71	CARDINAL
expositions-1773	15	2	alvarez	PERSON
expositions-1773	15	3	three	CARDINAL
expositions-1773	18	1	christian	NORP
expositions-1773	18	2	one	CARDINAL
expositions-1773	18	3	eight	CARDINAL
expositions-1773	19	1	sagan	PERSON
expositions-1773	24	1	sio2	ORG
expositions-1773	26	1	carl sagan	PERSON
expositions-1773	26	2	stardust	PERSON
expositions-1773	26	3	stardust	PERSON
expositions-1773	27	1	two	CARDINAL
expositions-1773	28	1	first	ORDINAL
expositions-1773	29	1	four	CARDINAL
expositions-1773	30	1	second	ORDINAL
expositions-1773	34	1	stardust	PERSON
expositions-1773	35	1	72	CARDINAL
expositions-1773	38	1	four	CARDINAL
expositions-1773	41	1	four	CARDINAL
expositions-1773	41	2	first	ORDINAL
expositions-1773	41	3	earth	LOC
expositions-1773	41	4	second	ORDINAL
expositions-1773	42	1	first	ORDINAL
expositions-1773	42	2	first	ORDINAL
expositions-1773	43	1	four	CARDINAL
expositions-1773	43	2	silicon3	PERSON
expositions-1773	45	1	sio2	ORG
expositions-1773	50	1	igneous	DATE
expositions-1773	54	1	mundi—“out	CARDINAL
expositions-1773	55	1	73	CARDINAL
expositions-1773	55	2	alvarez	PERSON
expositions-1773	55	3	second	ORDINAL
expositions-1773	56	1	first	ORDINAL
expositions-1773	60	1	first	ORDINAL
expositions-1773	60	2	o	DATE
expositions-1773	62	1	today	DATE
expositions-1773	64	1	4.567 billion	MONEY
expositions-1773	64	2	years ago	DATE
expositions-1773	66	1	christian	NORP
expositions-1773	66	2	benjamin	PERSON
expositions-1773	67	1	four	CARDINAL
expositions-1773	67	2	ea	CARDINAL
expositions-1773	67	3	four	CARDINAL
expositions-1773	67	4	ea	CARDINAL
expositions-1773	67	5	calle n.	PERSON
expositions-1773	68	1	ach	ORG
expositions-1773	68	2	one	CARDINAL
expositions-1773	69	1	two	CARDINAL
expositions-1773	73	1	anoth onds	PERSON
expositions-1773	73	2	lin	PERSON
expositions-1773	73	3	four	CARDINAL
expositions-1773	73	4	ho ms	PERSON
expositions-1773	73	5	sili	ORG
expositions-1773	73	6	fa	ORG
expositions-1773	74	1	ea	CARDINAL
expositions-1773	75	1	two	CARDINAL
expositions-1773	75	2	a sil ge	PERSON
expositions-1773	75	3	alm e	PERSON
expositions-1773	75	4	earth	LOC
expositions-1773	75	5	hab piter	PERSON
expositions-1773	75	6	ea	CARDINAL
expositions-1773	76	1	christian	NORP
expositions-1773	77	1	ge	ORG
expositions-1773	80	1	2013	DATE
expositions-1773	80	2	25	CARDINAL
expositions-1773	80	3	elem oming impo	PERSON
expositions-1773	82	1	toge ch	PERSON
expositions-1773	82	2	sili 74	ORG
expositions-1773	83	1	ments ments	PERSON
expositions-1773	86	1	toms	GPE
expositions-1773	87	1	75	CARDINAL
expositions-1773	87	2	alvarez	PERSON
expositions-1773	89	1	four	CARDINAL
expositions-1773	94	1	one	CARDINAL
expositions-1773	94	2	three	CARDINAL
expositions-1773	95	1	one	CARDINAL
expositions-1773	95	2	earth	LOC
expositions-1773	95	3	one	CARDINAL
expositions-1773	98	1	three	CARDINAL
expositions-1773	98	2	a million years ago	DATE
expositions-1773	103	1	three	CARDINAL
expositions-1773	103	2	three ages	DATE
expositions-1773	104	1	east africa	GPE
expositions-1773	106	1	gorge	PERSON
expositions-1773	106	2	tanzania	GPE
expositions-1773	107	1	an million	CARDINAL
expositions-1773	107	2	ma	PERSON
expositions-1773	107	3	ab nick t stone ag	ORG
expositions-1773	107	4	about 1.5	CARDINAL
expositions-1773	107	5	stardust	PERSON
expositions-1773	108	1	toth	PERSON
expositions-1773	108	2	ge institute	ORG
expositions-1773	108	3	an acheulea 5	CARDINAL
expositions-1773	108	4	w athy shick	ORG
expositions-1773	108	5	indiana	GPE
expositions-1773	109	1	paleoanthrop university	ORG
expositions-1773	111	1	obj	ORG
expositions-1773	112	1	han	NORP
expositions-1773	112	2	ge	ORG
expositions-1773	114	1	ho study ston	PERSON
expositions-1773	114	2	expe ain	GPE
expositions-1773	116	1	matc	ORG
expositions-1773	117	1	hu	PERSON
expositions-1773	117	2	france	GPE
expositions-1773	118	1	bif ard	PERSON
expositions-1773	118	2	one	CARDINAL
expositions-1773	118	3	76	CARDINAL
expositions-1773	118	4	uman st 2.5	PERSON
expositions-1773	119	1	77	CARDINAL
expositions-1773	119	2	nick t   	PERSON
expositions-1773	119	3	roc	GPE
expositions-1773	119	4	sio2	ORG
expositions-1773	120	1	toth	PERSON
expositions-1773	121	1	sio2	PERSON
expositions-1773	123	1	sio2	ORG
expositions-1773	124	1	fluo tter	ORG
expositions-1773	124	2	sio2	ORG
expositions-1773	124	3	ian	NORP
expositions-1773	126	1	anisms	PERSON
expositions-1773	126	2	lim e volcanic gl	ORG
expositions-1773	127	1	li	GPE
expositions-1773	128	1	gra	ORG
expositions-1773	129	1	caco ardness scal	ORG
expositions-1773	129	2	caco e-celled	ORG
expositions-1773	129	3	anc	ORG
expositions-1773	129	4	ho oth	PERSON
expositions-1773	129	5	sedi o3	PERSON
expositions-1773	129	6	corundu o3	PERSON
expositions-1773	132	1	roc hert	PERSON
expositions-1773	132	2	extrem	PERSON
expositions-1773	132	3	al oto	ORG
expositions-1773	132	4	aut	ORG
expositions-1773	133	1	two	CARDINAL
expositions-1773	133	2	al	PERSON
expositions-1773	135	1	lvarez thor	PERSON
expositions-1773	136	1	rt	ORG
expositions-1773	136	2	stardust	PERSON
expositions-1773	137	1	southern england	LOC
expositions-1773	137	2	about 800 years	DATE
expositions-1773	138	1	today	DATE
expositions-1773	138	2	stonehenge	LOC
expositions-1773	138	3	first	ORDINAL
expositions-1773	139	1	sio2	PERSON
expositions-1773	143	1	3500	CARDINAL
expositions-1773	143	2	mesopotamia	GPE
expositions-1773	143	3	egypt	GPE
expositions-1773	146	1	the day	DATE
expositions-1773	146	2	night	TIME
expositions-1773	147	1	glass	PERSON
expositions-1773	151	1	today	DATE
expositions-1773	151	2	sio2	ORG
expositions-1773	157	1	first	ORDINAL
expositions-1773	158	1	79	CARDINAL
expositions-1773	158	2	abu	GPE
expositions-1773	158	3	w billion	MONEY
expositions-1773	158	4	first	ORDINAL
expositions-1773	158	5	su third	ORG
expositions-1773	159	1	ase	ORG
expositions-1773	159	2	1	CARDINAL
expositions-1773	159	3	4	CARDINAL
expositions-1773	160	1	one	CARDINAL
expositions-1773	161	1	w mplified	ORG
expositions-1773	161	2	carto y pure	PERSON
expositions-1773	161	3	tens	CARDINAL
expositions-1773	161	4	roc	GPE
expositions-1773	163	1	s or hundred	CARDINAL
expositions-1773	164	1	ea	CARDINAL
expositions-1773	165	1	2	CARDINAL
expositions-1773	165	2	glas e rock	PERSON
expositions-1773	166	1	qua	ORG
expositions-1773	166	2	mg arou	PERSON
expositions-1773	166	3	qua antle	PERSON
expositions-1773	166	4	t uartz sand co g	ORG
expositions-1773	168	1	w	ORG
expositions-1773	169	1	mag artz	PERSON
expositions-1773	169	2	sio2	ORG
expositions-1773	169	3	w und	PERSON
expositions-1773	169	4	artz	PERSON
expositions-1773	171	1	earth	LOC
expositions-1773	171	2	geo	ORG
expositions-1773	171	3	sili	ORG
expositions-1773	171	4	first	ORDINAL
expositions-1773	171	5	appr	CARDINAL
expositions-1773	171	6	mid-o	DATE
expositions-1773	171	7	t o	DATE
expositions-1773	172	1	radually extr	ORG
expositions-1773	172	2	ar   antle rock	ORG
expositions-1773	172	3	sio2	ORG
expositions-1773	172	4	directio st	PERSON
expositions-1773	172	5	japan	GPE
expositions-1773	173	1	4.5	CARDINAL
expositions-1773	173	2	fourth	ORDINAL
expositions-1773	175	1	stardust	PERSON
expositions-1773	177	1	fifth	ORDINAL
expositions-1773	179	1	cades of wa ks	ORG
expositions-1773	181	1	ashington	GPE
expositions-1773	182	1	ks	GPE
expositions-1773	182	2	concentra s	ORG
expositions-1773	182	3	produc e	GPE
expositions-1773	184	1	oregon	GPE
expositions-1773	184	2	nevada	GPE
expositions-1773	187	1	accu z. earth	PERSON
expositions-1773	187	2	ho	NORP
expositions-1773	187	3	nia	DATE
expositions-1773	189	1	sili hemical weat ering	ORG
expositions-1773	189	2	wet clima	PERSON
expositions-1773	190	1	the gra n	ORG
expositions-1773	190	2	lcanic	PERSON
expositions-1773	191	1	al nerals	ORG
expositions-1773	191	2	espec hoto	PERSON
expositions-1773	191	3	ea	CARDINAL
expositions-1773	191	4	ates	PERSON
expositions-1773	191	5	earth	LOC
expositions-1773	191	6	81	CARDINAL
expositions-1773	191	7	alvarez	PERSON
expositions-1773	191	8	earth	LOC
expositions-1773	192	1	one	CARDINAL
expositions-1773	192	2	william dickinson	PERSON
expositions-1773	192	3	george gehrels	PERSON
expositions-1773	192	4	the university of arizona	ORG
expositions-1773	192	5	dickinson	PERSON
expositions-1773	192	6	2009	DATE
expositions-1773	193	1	utah	GPE
expositions-1773	194	1	wyoming	GPE
expositions-1773	194	2	utah	GPE
expositions-1773	197	1	the zircon grains	FAC
expositions-1773	198	1	dickinson	PERSON
expositions-1773	198	2	more than 1600	CARDINAL
expositions-1773	198	3	the colorado plateau	LOC
expositions-1773	198	4	wyoming	GPE
expositions-1773	198	5	western north america	LOC
expositions-1773	199	1	eastern united states	GPE
expositions-1773	199	2	the appalachian mountains	LOC
expositions-1773	200	1	appalachians	ORG
expositions-1773	200	2	the colorado plateau	LOC
expositions-1773	201	1	today	DATE
expositions-1773	201	2	mississippi	LOC
expositions-1773	201	3	mexico	GPE
expositions-1773	202	1	north america	LOC
expositions-1773	203	1	about 150–200 million years ago	DATE
expositions-1773	203	2	dickinson	PERSON
expositions-1773	204	1	appalachian mountains	LOC
expositions-1773	204	2	the mississippi river	LOC
expositions-1773	204	3	jurassic north america	GPE
expositions-1773	204	4	africa	LOC
expositions-1773	204	5	north america	LOC
expositions-1773	204	6	the rocky mountains	LOC
expositions-1773	205	1	mississippi	GPE
expositions-1773	205	2	appalachian	NORP
expositions-1773	205	3	wyoming	GPE
expositions-1773	205	4	utah	GPE
expositions-1773	206	1	utah	GPE
expositions-1773	206	2	the appalachian mountains	LOC
expositions-1773	206	3	2,000 miles	QUANTITY
expositions-1773	208	1	stardust	PERSON
expositions-1773	209	1	82	CARDINAL
expositions-1773	210	1	early twenty-first century	DATE
expositions-1773	211	1	stonehenge	LOC
expositions-1773	211	2	california	GPE
expositions-1773	214	1	earth	LOC
expositions-1773	214	2	sio2	ORG
expositions-1773	216	1	sio2	ORG
expositions-1773	217	1	sio2	ORG
expositions-1773	219	1	sio2	ORG
expositions-1773	220	1	spain	GPE
expositions-1773	220	2	the sierra nevada foothills of	ORG
expositions-1773	220	3	california	GPE
expositions-1773	221	1	sio2	ORG
expositions-1773	224	1	83	CARDINAL
expositions-1773	224	2	alvarez	PERSON
expositions-1773	224	3	three	CARDINAL
expositions-1773	225	1	one	CARDINAL
expositions-1773	226	1	today	DATE
expositions-1773	228	1	carl sagan	PERSON
expositions-1773	228	2	stardust	PERSON
expositions-1773	229	1	1	CARDINAL
expositions-1773	230	1	three	CARDINAL
expositions-1773	230	2	first	ORDINAL
expositions-1773	230	3	14	DATE
expositions-1773	230	4	sio2	ORG
expositions-1773	231	1	the “silicate tetrahedron”—a	DATE
expositions-1773	231	2	four	CARDINAL
expositions-1773	233	1	2	CARDINAL
expositions-1773	235	1	3	CARDINAL
expositions-1773	236	1	4	CARDINAL
expositions-1773	237	1	1988	DATE
expositions-1773	237	2	291	CARDINAL
expositions-1773	238	1	5	CARDINAL
expositions-1773	238	2	nick	PERSON
expositions-1773	238	3	kathy	PERSON
expositions-1773	238	4	http://www.bigbangtowww.org/	CARDINAL
expositions-1773	238	5	stardust	PERSON
expositions-1773	239	1	84	CARDINAL
expositions-1773	239	2	6	CARDINAL
expositions-1773	240	1	illinois	GPE
expositions-1773	240	2	ordovician	NORP
expositions-1773	240	3	41°	QUANTITY
expositions-1773	240	4	w.	PERSON
expositions-1773	240	5	wallace	PERSON
expositions-1773	241	1	1988	DATE
expositions-1773	243	1	new york	GPE
expositions-1773	244	1	christian	NORP
expositions-1773	244	2	david	PERSON
expositions-1773	244	3	cynthia stokes brown	PERSON
expositions-1773	244	4	craig benjamin	PERSON
expositions-1773	244	5	2013	DATE
expositions-1773	246	1	princeton	PERSON
expositions-1773	246	2	mcgraw-hill	ORG
expositions-1773	247	1	dickinson	PERSON
expositions-1773	247	2	william r.	PERSON
expositions-1773	247	3	george e. gehrels	PERSON
expositions-1773	248	1	2009	DATE
expositions-1773	249	1	jurassic	GPE
expositions-1773	249	2	the colorado plateau	LOC
expositions-1773	250	1	america	GPE
expositions-1773	251	1	408–433	CARDINAL