id	sid	tid	token	lemma	pos
j6731259k0n	1	1	two	two	NUM
j6731259k0n	1	2	problems	problem	NOUN
j6731259k0n	1	3	that	that	PRON
j6731259k0n	1	4	are	be	AUX
j6731259k0n	1	5	generally	generally	ADV
j6731259k0n	1	6	considered	consider	VERB
j6731259k0n	1	7	to	to	PART
j6731259k0n	1	8	be	be	AUX
j6731259k0n	1	9	difficult	difficult	ADJ
j6731259k0n	1	10	in	in	ADP
j6731259k0n	1	11	face	face	NOUN
j6731259k0n	1	12	recognition	recognition	NOUN
j6731259k0n	1	13	are	be	AUX
j6731259k0n	1	14	variations	variation	NOUN
j6731259k0n	1	15	in	in	ADP
j6731259k0n	1	16	expression	expression	NOUN
j6731259k0n	1	17	and	and	CCONJ
j6731259k0n	1	18	distinguishing	distinguish	VERB
j6731259k0n	1	19	between	between	ADP
j6731259k0n	1	20	the	the	DET
j6731259k0n	1	21	faces	face	NOUN
j6731259k0n	1	22	of	of	ADP
j6731259k0n	1	23	identical	identical	ADJ
j6731259k0n	1	24	twins	twin	NOUN
j6731259k0n	1	25	.	.	PUNCT
j6731259k0n	2	1	this	this	DET
j6731259k0n	2	2	work	work	NOUN
j6731259k0n	2	3	consists	consist	VERB
j6731259k0n	2	4	of	of	ADP
j6731259k0n	2	5	a	a	DET
j6731259k0n	2	6	study	study	NOUN
j6731259k0n	2	7	on	on	ADP
j6731259k0n	2	8	the	the	DET
j6731259k0n	2	9	performance	performance	NOUN
j6731259k0n	2	10	of	of	ADP
j6731259k0n	2	11	3d	3d	PRON
j6731259k0n	2	12	face	face	NOUN
j6731259k0n	2	13	recognition	recognition	NOUN
j6731259k0n	2	14	algorithms	algorithm	NOUN
j6731259k0n	2	15	on	on	ADP
j6731259k0n	2	16	a	a	DET
j6731259k0n	2	17	relatively	relatively	ADV
j6731259k0n	2	18	large	large	ADJ
j6731259k0n	2	19	set	set	NOUN
j6731259k0n	2	20	of	of	ADP
j6731259k0n	2	21	identical	identical	ADJ
j6731259k0n	2	22	twins	twin	NOUN
j6731259k0n	2	23	:	:	PUNCT
j6731259k0n	2	24	the	the	DET
j6731259k0n	2	25	3d	3d	NOUN
j6731259k0n	2	26	twins	twin	NOUN
j6731259k0n	2	27	expression	expression	NOUN
j6731259k0n	2	28	challenge	challenge	NOUN
j6731259k0n	2	29	(	(	PUNCT
j6731259k0n	2	30	`	`	PUNCT
j6731259k0n	2	31	`	`	PUNCT
j6731259k0n	2	32	3d	3d	X
j6731259k0n	2	33	tec	tec	PROPN
j6731259k0n	2	34	'	'	PUNCT
j6731259k0n	2	35	)	)	PUNCT
j6731259k0n	2	36	dataset	dataset	NOUN
j6731259k0n	2	37	.	.	PUNCT
j6731259k0n	3	1	the	the	DET
j6731259k0n	3	2	3d	3d	NOUN
j6731259k0n	3	3	tec	tec	X
j6731259k0n	3	4	dataset	dataset	NOUN
j6731259k0n	3	5	is	be	AUX
j6731259k0n	3	6	a	a	DET
j6731259k0n	3	7	challenging	challenge	VERB
j6731259k0n	3	8	dataset	dataset	NOUN
j6731259k0n	3	9	that	that	PRON
j6731259k0n	3	10	consists	consist	VERB
j6731259k0n	3	11	of	of	ADP
j6731259k0n	3	12	3d	3d	PRON
j6731259k0n	3	13	scans	scan	NOUN
j6731259k0n	3	14	of	of	ADP
j6731259k0n	3	15	107	107	NUM
j6731259k0n	3	16	pairs	pair	NOUN
j6731259k0n	3	17	of	of	ADP
j6731259k0n	3	18	twins	twin	NOUN
j6731259k0n	3	19	that	that	PRON
j6731259k0n	3	20	were	be	AUX
j6731259k0n	3	21	acquired	acquire	VERB
j6731259k0n	3	22	in	in	ADP
j6731259k0n	3	23	a	a	DET
j6731259k0n	3	24	single	single	ADJ
j6731259k0n	3	25	session	session	NOUN
j6731259k0n	3	26	,	,	PUNCT
j6731259k0n	3	27	with	with	ADP
j6731259k0n	3	28	each	each	DET
j6731259k0n	3	29	subject	subject	NOUN
j6731259k0n	3	30	having	have	VERB
j6731259k0n	3	31	a	a	DET
j6731259k0n	3	32	scan	scan	NOUN
j6731259k0n	3	33	of	of	ADP
j6731259k0n	3	34	a	a	DET
j6731259k0n	3	35	neutral	neutral	ADJ
j6731259k0n	3	36	expression	expression	NOUN
j6731259k0n	3	37	and	and	CCONJ
j6731259k0n	3	38	a	a	DET
j6731259k0n	3	39	smiling	smile	VERB
j6731259k0n	3	40	expression	expression	NOUN
j6731259k0n	3	41	.	.	PUNCT
j6731259k0n	4	1	the	the	DET
j6731259k0n	4	2	combination	combination	NOUN
j6731259k0n	4	3	of	of	ADP
j6731259k0n	4	4	factors	factor	NOUN
j6731259k0n	4	5	related	relate	VERB
j6731259k0n	4	6	to	to	ADP
j6731259k0n	4	7	the	the	DET
j6731259k0n	4	8	facial	facial	ADJ
j6731259k0n	4	9	similarity	similarity	NOUN
j6731259k0n	4	10	of	of	ADP
j6731259k0n	4	11	identical	identical	ADJ
j6731259k0n	4	12	twins	twin	NOUN
j6731259k0n	4	13	and	and	CCONJ
j6731259k0n	4	14	the	the	DET
j6731259k0n	4	15	variation	variation	NOUN
j6731259k0n	4	16	in	in	ADP
j6731259k0n	4	17	facial	facial	ADJ
j6731259k0n	4	18	expression	expression	NOUN
j6731259k0n	4	19	makes	make	VERB
j6731259k0n	4	20	this	this	PRON
j6731259k0n	4	21	a	a	DET
j6731259k0n	4	22	challenging	challenge	VERB
j6731259k0n	4	23	dataset	dataset	NOUN
j6731259k0n	4	24	.	.	PUNCT
j6731259k0n	5	1	in	in	ADP
j6731259k0n	5	2	this	this	DET
j6731259k0n	5	3	paper	paper	NOUN
j6731259k0n	5	4	,	,	PUNCT
j6731259k0n	5	5	we	we	PRON
j6731259k0n	5	6	demonstrate	demonstrate	VERB
j6731259k0n	5	7	the	the	DET
j6731259k0n	5	8	performance	performance	NOUN
j6731259k0n	5	9	of	of	ADP
j6731259k0n	5	10	modern	modern	ADJ
j6731259k0n	5	11	face	face	NOUN
j6731259k0n	5	12	recognition	recognition	NOUN
j6731259k0n	5	13	algorithms	algorithm	NOUN
j6731259k0n	5	14	on	on	ADP
j6731259k0n	5	15	this	this	DET
j6731259k0n	5	16	dataset	dataset	NOUN
j6731259k0n	5	17	.	.	PUNCT
j6731259k0n	6	1	the	the	DET
j6731259k0n	6	2	results	result	NOUN
j6731259k0n	6	3	indicate	indicate	VERB
j6731259k0n	6	4	that	that	SCONJ
j6731259k0n	6	5	3d	3d	PRON
j6731259k0n	6	6	face	face	NOUN
j6731259k0n	6	7	recognition	recognition	NOUN
j6731259k0n	6	8	of	of	ADP
j6731259k0n	6	9	identical	identical	ADJ
j6731259k0n	6	10	twins	twin	NOUN
j6731259k0n	6	11	in	in	ADP
j6731259k0n	6	12	the	the	DET
j6731259k0n	6	13	presence	presence	NOUN
j6731259k0n	6	14	of	of	ADP
j6731259k0n	6	15	varying	vary	VERB
j6731259k0n	6	16	facial	facial	ADJ
j6731259k0n	6	17	expressions	expression	NOUN
j6731259k0n	6	18	is	be	AUX
j6731259k0n	6	19	far	far	ADV
j6731259k0n	6	20	from	from	ADP
j6731259k0n	6	21	a	a	DET
j6731259k0n	6	22	solved	solved	ADJ
j6731259k0n	6	23	problem	problem	NOUN
j6731259k0n	6	24	.	.	PUNCT
j6731259k0n	7	1	an	an	DET
j6731259k0n	7	2	approach	approach	NOUN
j6731259k0n	7	3	based	base	VERB
j6731259k0n	7	4	on	on	ADP
j6731259k0n	7	5	dimensionality	dimensionality	NOUN
j6731259k0n	7	6	reduction	reduction	NOUN
j6731259k0n	7	7	of	of	ADP
j6731259k0n	7	8	the	the	DET
j6731259k0n	7	9	geodesic	geodesic	ADJ
j6731259k0n	7	10	distance	distance	NOUN
j6731259k0n	7	11	matrix	matrix	NOUN
j6731259k0n	7	12	is	be	AUX
j6731259k0n	7	13	also	also	ADV
j6731259k0n	7	14	attempted	attempt	VERB
j6731259k0n	7	15	against	against	ADP
j6731259k0n	7	16	the	the	DET
j6731259k0n	7	17	dataset	dataset	NOUN
j6731259k0n	7	18	.	.	PUNCT
j6731259k0n	8	1	it	it	PRON
j6731259k0n	8	2	was	be	AUX
j6731259k0n	8	3	found	find	VERB
j6731259k0n	8	4	that	that	SCONJ
j6731259k0n	8	5	the	the	DET
j6731259k0n	8	6	use	use	NOUN
j6731259k0n	8	7	of	of	ADP
j6731259k0n	8	8	geodesic	geodesic	ADJ
j6731259k0n	8	9	distances	distance	NOUN
j6731259k0n	8	10	did	do	AUX
j6731259k0n	8	11	not	not	PART
j6731259k0n	8	12	improve	improve	VERB
j6731259k0n	8	13	performance	performance	NOUN
j6731259k0n	8	14	for	for	ADP
j6731259k0n	8	15	a	a	DET
j6731259k0n	8	16	certain	certain	ADJ
j6731259k0n	8	17	class	class	NOUN
j6731259k0n	8	18	of	of	ADP
j6731259k0n	8	19	algorithms	algorithm	NOUN
j6731259k0n	8	20	due	due	ADP
j6731259k0n	8	21	to	to	ADP
j6731259k0n	8	22	the	the	DET
j6731259k0n	8	23	reduction	reduction	NOUN
j6731259k0n	8	24	in	in	ADP
j6731259k0n	8	25	resolution	resolution	NOUN
j6731259k0n	8	26	needed	need	VERB
j6731259k0n	8	27	for	for	ADP
j6731259k0n	8	28	calculating	calculate	VERB
j6731259k0n	8	29	the	the	DET
j6731259k0n	8	30	geodesic	geodesic	ADJ
j6731259k0n	8	31	distance	distance	NOUN
j6731259k0n	8	32	matrix	matrix	NOUN
j6731259k0n	8	33	.	.	PUNCT