id	sid	eid	entity	type
esrj-21263	1	1	earth sciences research journal	ORG
esrj-21263	1	2	sci.	ORG
esrj-21263	3	1	j. vol.	PERSON
esrj-21263	4	1	8	CARDINAL
esrj-21263	4	2	1	CARDINAL
esrj-21263	4	3	dec. 2004	DATE
esrj-21263	4	4	63 67	CARDINAL
esrj-21263	4	5	july 2004	DATE
esrj-21263	5	1	63	CARDINAL
esrj-21263	5	2	october 2004	DATE
esrj-21263	6	1	miguel duarte1	PERSON
esrj-21263	6	2	carlos piedrahita1	PERSON
esrj-21263	6	3	salinas1	EVENT
esrj-21263	6	4	hernando	GPE
esrj-21263	6	5	2	CARDINAL
esrj-21263	6	6	karen pachano	PERSON
esrj-21263	6	7	2 1	CARDINAL
esrj-21263	6	8	instituto colombiano de petróleos	ORG
esrj-21263	6	9	ecopetrol	GPE
esrj-21263	7	1	colombia	GPE
esrj-21263	8	1	mudarte@ecopetrol.com.co	PERSON
esrj-21263	8	2	tsalinas@ecopetrol.com.co	GPE
esrj-21263	8	3	2	CARDINAL
esrj-21263	13	1	colombian	NORP
esrj-21263	15	1	de la ecuación en diferentes	PERSON
esrj-21263	15	2	medios	ORG
esrj-21263	15	3	obtenemos los diferentes	ORG
esrj-21263	15	4	tipos de ondas que pueden existir en tales medios	ORG
esrj-21263	16	1	la evaluación de los valores	ORG
esrj-21263	16	2	y los	ORG
esrj-21263	16	3	propios permite construir las superficies de lentitud	ORG
esrj-21263	17	1	complejos casos de cálculos	ORG
esrj-21263	18	1	implementaron	GPE
esrj-21263	18	2	algunas rutinas en el lenguaje simbólico maple®	ORG
esrj-21263	18	3	las superficies de lentitud este trabajo	GPE
esrj-21263	18	4	de medios equivalentes	ORG
esrj-21263	18	5	que simulan los depósitos fracturados naturales	ORG
esrj-21263	18	6	como los que aparecen en las zonas de piedemonte colombianos	ORG
esrj-21263	19	1	reacción sísmica de estos depósitos para la exploración de estas	ORG
esrj-21263	20	1	palabras clave	ORG
esrj-21263	20	2	simetría cúbica	PERSON
esrj-21263	20	3	de lentitud	PERSON
esrj-21263	21	1	2004	DATE
esrj-21263	22	1	miguel duarte et al	PERSON
esrj-21263	28	1	linear	ORG
esrj-21263	28	2	1	CARDINAL
esrj-21263	28	3	2	CARDINAL
esrj-21263	28	4	3	CARDINAL
esrj-21263	28	5	2002	DATE
esrj-21263	28	6	2004	DATE
esrj-21263	28	7	1994	DATE
esrj-21263	29	1	2	CARDINAL
esrj-21263	29	2	∇	ORG
esrj-21263	29	3	∂ &&	ORG
esrj-21263	29	4	1	CARDINAL
esrj-21263	29	5	ijkl klc cτ	ORG
esrj-21263	29	6	ε τ ε= ↔	ORG
esrj-21263	29	7	2	CARDINAL
esrj-21263	29	8	1 1 2 2	QUANTITY
esrj-21263	29	9	k l kl	ORG
esrj-21263	30	1	+⎜	PERSON
esrj-21263	30	2	3	CARDINAL
esrj-21263	31	1	second	ORDINAL
esrj-21263	31	2	fourth	ORDINAL
esrj-21263	31	3	second	ORDINAL
esrj-21263	33	1	cartesian	PERSON
esrj-21263	36	1	3	CARDINAL
esrj-21263	36	2	6	CARDINAL
esrj-21263	36	3	only three	CARDINAL
esrj-21263	36	4	4	CARDINAL
esrj-21263	36	5	1970	DATE
esrj-21263	37	1	2 22	CARDINAL
esrj-21263	37	2	2	CARDINAL
esrj-21263	37	3	jmkm ik k	PERSON
esrj-21263	40	1	∂∂	NORP
esrj-21263	40	2	×∇= ↔	ORG
esrj-21263	40	3	4	CARDINAL
esrj-21263	40	4	1	CARDINAL
esrj-21263	40	5	2	CARDINAL
esrj-21263	40	6	3	CARDINAL
esrj-21263	40	7	4	CARDINAL
esrj-21263	40	8	2 2	CARDINAL
esrj-21263	41	1	j l u	PERSON
esrj-21263	41	2	=⎜	PERSON
esrj-21263	41	3	5	CARDINAL
esrj-21263	41	4	6x6	CARDINAL
esrj-21263	42	1	j k	PERSON
esrj-21263	44	1	5	CARDINAL
esrj-21263	46	1	21	CARDINAL
esrj-21263	48	1	5	CARDINAL
esrj-21263	49	1	one	CARDINAL
esrj-21263	50	1	5	CARDINAL
esrj-21263	50	2	6	CARDINAL
esrj-21263	50	3	2 2 2	QUANTITY
esrj-21263	53	1	j l	PERSON
esrj-21263	54	1	6	CARDINAL
esrj-21263	54	2	first	ORDINAL
esrj-21263	55	1	iik vt l xik	FAC
esrj-21263	57	1	7	CARDINAL
esrj-21263	57	2	64 2k	CARDINAL
esrj-21263	58	1	7	CARDINAL
esrj-21263	58	2	6	CARDINAL
esrj-21263	58	3	2 2 0ij	DATE
esrj-21263	59	1	u k	PERSON
esrj-21263	59	2	ijl	ORG
esrj-21263	60	1	2	CARDINAL
esrj-21263	61	1	2	CARDINAL
esrj-21263	61	2	ik kv	PERSON
esrj-21263	61	3	9	CARDINAL
esrj-21263	62	1	il	PERSON
esrj-21263	62	2	jk kll	PERSON
esrj-21263	63	1	10	CARDINAL
esrj-21263	63	2	1p	CARDINAL
esrj-21263	63	3	three	CARDINAL
esrj-21263	63	4	v2	PRODUCT
esrj-21263	64	1	2det	CARDINAL
esrj-21263	64	2	11	CARDINAL
esrj-21263	64	3	three	CARDINAL
esrj-21263	64	4	three	CARDINAL
esrj-21263	68	1	unprotect(gamma	GPE
esrj-21263	68	2	2	CARDINAL
esrj-21263	69	1	3	CARDINAL
esrj-21263	70	1	c[3,3]:=c11	PERSON
esrj-21263	70	2	5	CARDINAL
esrj-21263	71	1	c[2,3]:=c13	PERSON
esrj-21263	71	2	9	CARDINAL
esrj-21263	72	1	13	CARDINAL
esrj-21263	72	2	65	CARDINAL
esrj-21263	72	3	miguel duarte et al	PERSON
esrj-21263	73	1	66	CARDINAL
esrj-21263	73	2	c[4,5]:=c45	PERSON
esrj-21263	73	3	c[4,6]:=c46	PERSON
esrj-21263	74	1	consts:=c11=16.57	PERSON
esrj-21263	74	2	10	CARDINAL
esrj-21263	74	3	10,c12=6.39	CARDINAL
esrj-21263	74	4	10	CARDINAL
esrj-21263	74	5	10,c44	CARDINAL
esrj-21263	74	6	7.956	CARDINAL
esrj-21263	74	7	10	CARDINAL
esrj-21263	74	8	10,rho=2332	CARDINAL
esrj-21263	75	1	2.84e10,c44=8.36e9,c66=1.26e10,rho=2500	CARDINAL
esrj-21263	75	2	k:=[solve(d	PERSON
esrj-21263	75	3	k	PERSON
esrj-21263	75	4	map(simplify,%,trig	PERSON
esrj-21263	75	5	solve({a[2,1]*u1+a[2,2]*u2=0},{u1	PERSON
esrj-21263	76	1	3]))],theta=0	CARDINAL
esrj-21263	76	2	2*pi	CARDINAL
esrj-21263	76	3	2*pi	CARDINAL
esrj-21263	76	4	k[1]/rho	PERSON
esrj-21263	76	5	k[2]/rho	ORG
esrj-21263	76	6	1),theta=0	CARDINAL
esrj-21263	76	7	2*pi]},colo	CARDINAL
esrj-21263	76	8	pi/2,color=[red	PERSON
esrj-21263	77	1	three	CARDINAL
esrj-21263	78	1	10 3	CARDINAL
esrj-21263	78	2	1.07 2.84	TIME
esrj-21263	78	3	0 10	DATE
esrj-21263	78	4	2500	CARDINAL
esrj-21263	78	5	0.836	CARDINAL
esrj-21263	78	6	0.836	CARDINAL
esrj-21263	78	7	1.26	CARDINAL
esrj-21263	78	8	kgc pa m ρ ⎛ ⎞	ORG
esrj-21263	78	9	⎜ ⎟ ⎜ ⎟ ⎜ ⎟	PERSON
esrj-21263	78	10	1	CARDINAL
esrj-21263	78	11	2000	DATE
esrj-21263	80	1	colombian	NORP
esrj-21263	82	1	2	CARDINAL
esrj-21263	85	1	3	CARDINAL
esrj-21263	88	1	the colombian institute of petroleum	ORG
esrj-21263	88	2	ecopetrol	GPE
esrj-21263	88	3	uin	ORG
esrj-21263	89	1	mrinal	PERSON
esrj-21263	90	1	2002	DATE
esrj-21263	91	1	the university of texas	ORG
esrj-21263	91	2	austin	GPE
esrj-21263	91	3	krishnaswamy	ORG
esrj-21263	92	1	2004	DATE
esrj-21263	94	1	ivan	PERSON
esrj-21263	95	1	1994	DATE
esrj-21263	96	1	el salvador	GPE
esrj-21263	97	1	george e.	PERSON
esrj-21263	97	2	1970	DATE
esrj-21263	98	1	schaum	PERSON
esrj-21263	98	2	mcgraw-hill thomsen	ORG
esrj-21263	98	3	leon	PERSON
esrj-21263	99	1	2000	DATE
esrj-21263	101	1	20	CARDINAL
esrj-21263	101	2	seg	GPE
esrj-21263	101	3	67	CARDINAL