id	sid	tid	token	lemma	pos
8s45q814n6j	1	1	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	1	2	contribute	contribute	VERB
8s45q814n6j	1	3	to	to	ADP
8s45q814n6j	1	4	many	many	ADJ
8s45q814n6j	1	5	of	of	ADP
8s45q814n6j	1	6	the	the	DET
8s45q814n6j	1	7	challenges	challenge	NOUN
8s45q814n6j	1	8	encountered	encounter	VERB
8s45q814n6j	1	9	when	when	SCONJ
8s45q814n6j	1	10	producing	produce	VERB
8s45q814n6j	1	11	,	,	PUNCT
8s45q814n6j	1	12	transporting	transporting	NOUN
8s45q814n6j	1	13	,	,	PUNCT
8s45q814n6j	1	14	and	and	CCONJ
8s45q814n6j	1	15	refining	refine	VERB
8s45q814n6j	1	16	heavy	heavy	ADJ
8s45q814n6j	1	17	crude	crude	ADJ
8s45q814n6j	1	18	oil	oil	NOUN
8s45q814n6j	1	19	and	and	CCONJ
8s45q814n6j	1	20	bitumen	bituman	NOUN
8s45q814n6j	1	21	.	.	PUNCT
8s45q814n6j	2	1	they	they	PRON
8s45q814n6j	2	2	are	be	AUX
8s45q814n6j	2	3	the	the	DET
8s45q814n6j	2	4	source	source	NOUN
8s45q814n6j	2	5	of	of	ADP
8s45q814n6j	2	6	heavy	heavy	ADJ
8s45q814n6j	2	7	metals	metal	NOUN
8s45q814n6j	2	8	which	which	DET
8s45q814n6j	2	9	poison	poison	NOUN
8s45q814n6j	2	10	catalysts	catalyst	NOUN
8s45q814n6j	2	11	and	and	CCONJ
8s45q814n6j	2	12	which	which	PRON
8s45q814n6j	2	13	may	may	AUX
8s45q814n6j	2	14	facilitate	facilitate	VERB
8s45q814n6j	2	15	the	the	DET
8s45q814n6j	2	16	aggregation	aggregation	NOUN
8s45q814n6j	2	17	,	,	PUNCT
8s45q814n6j	2	18	deposition	deposition	NOUN
8s45q814n6j	2	19	,	,	PUNCT
8s45q814n6j	2	20	and	and	CCONJ
8s45q814n6j	2	21	emulsion	emulsion	NOUN
8s45q814n6j	2	22	formation	formation	NOUN
8s45q814n6j	2	23	exhibited	exhibit	VERB
8s45q814n6j	2	24	by	by	ADP
8s45q814n6j	2	25	asphaltenes	asphaltene	NOUN
8s45q814n6j	2	26	.	.	PUNCT
8s45q814n6j	3	1	here	here	ADV
8s45q814n6j	3	2	they	they	PRON
8s45q814n6j	3	3	are	be	AUX
8s45q814n6j	3	4	extracted	extract	VERB
8s45q814n6j	3	5	and	and	CCONJ
8s45q814n6j	3	6	enriched	enrich	VERB
8s45q814n6j	3	7	to	to	ADP
8s45q814n6j	3	8	ultra	ultra	ADJ
8s45q814n6j	3	9	-	-	ADJ
8s45q814n6j	3	10	high	high	ADJ
8s45q814n6j	3	11	purities	purity	NOUN
8s45q814n6j	3	12	from	from	ADP
8s45q814n6j	3	13	several	several	ADJ
8s45q814n6j	3	14	sources	source	NOUN
8s45q814n6j	3	15	:	:	PUNCT
8s45q814n6j	3	16	an	an	DET
8s45q814n6j	3	17	athabasca	athabasca	PROPN
8s45q814n6j	3	18	bitumen	bitumen	NOUN
8s45q814n6j	3	19	,	,	PUNCT
8s45q814n6j	3	20	a	a	DET
8s45q814n6j	3	21	canadian	canadian	ADJ
8s45q814n6j	3	22	northern	northern	ADJ
8s45q814n6j	3	23	tier	tier	NOUN
8s45q814n6j	3	24	crude	crude	NOUN
8s45q814n6j	3	25	,	,	PUNCT
8s45q814n6j	3	26	and	and	CCONJ
8s45q814n6j	3	27	a	a	DET
8s45q814n6j	3	28	north	north	ADJ
8s45q814n6j	3	29	american	american	ADJ
8s45q814n6j	3	30	heavy	heavy	ADJ
8s45q814n6j	3	31	crude	crude	NOUN
8s45q814n6j	3	32	.	.	PUNCT
8s45q814n6j	4	1	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	4	2	are	be	AUX
8s45q814n6j	4	3	characterized	characterize	VERB
8s45q814n6j	4	4	by	by	ADP
8s45q814n6j	4	5	uv	uv	NOUN
8s45q814n6j	4	6	-	-	PUNCT
8s45q814n6j	4	7	visible	visible	ADJ
8s45q814n6j	4	8	(	(	PUNCT
8s45q814n6j	4	9	uvvis	uvvis	PROPN
8s45q814n6j	4	10	)	)	PUNCT
8s45q814n6j	4	11	spectroscopy	spectroscopy	NOUN
8s45q814n6j	4	12	,	,	PUNCT
8s45q814n6j	4	13	x	x	NOUN
8s45q814n6j	4	14	-	-	NOUN
8s45q814n6j	4	15	ray	ray	NOUN
8s45q814n6j	4	16	fluorescence	fluorescence	NOUN
8s45q814n6j	4	17	(	(	PUNCT
8s45q814n6j	4	18	xrf	xrf	PROPN
8s45q814n6j	4	19	)	)	PUNCT
8s45q814n6j	4	20	spectroscopy	spectroscopy	NOUN
8s45q814n6j	4	21	,	,	PUNCT
8s45q814n6j	4	22	and	and	CCONJ
8s45q814n6j	4	23	mass	mass	ADJ
8s45q814n6j	4	24	spectrometry	spectrometry	NOUN
8s45q814n6j	4	25	.	.	PUNCT
8s45q814n6j	5	1	the	the	DET
8s45q814n6j	5	2	majority	majority	NOUN
8s45q814n6j	5	3	of	of	ADP
8s45q814n6j	5	4	the	the	DET
8s45q814n6j	5	5	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	5	6	are	be	AUX
8s45q814n6j	5	7	simple	simple	ADJ
8s45q814n6j	5	8	etio	etio	NOUN
8s45q814n6j	5	9	(	(	PUNCT
8s45q814n6j	5	10	407	407	NUM
8s45q814n6j	5	11	nm	nm	NOUN
8s45q814n6j	5	12	soret	soret	NOUN
8s45q814n6j	5	13	band	band	NOUN
8s45q814n6j	5	14	)	)	PUNCT
8s45q814n6j	5	15	or	or	CCONJ
8s45q814n6j	5	16	dpep	dpep	NOUN
8s45q814n6j	5	17	(	(	PUNCT
8s45q814n6j	5	18	410	410	NUM
8s45q814n6j	5	19	nm	nm	NOUN
8s45q814n6j	5	20	soret	soret	NOUN
8s45q814n6j	5	21	band	band	PROPN
8s45q814n6j	5	22	)	)	PUNCT
8s45q814n6j	5	23	types	type	NOUN
8s45q814n6j	5	24	,	,	PUNCT
8s45q814n6j	5	25	but	but	CCONJ
8s45q814n6j	5	26	some	some	PRON
8s45q814n6j	5	27	are	be	AUX
8s45q814n6j	5	28	more	more	ADV
8s45q814n6j	5	29	functionalized	functionalize	VERB
8s45q814n6j	5	30	compounds	compound	NOUN
8s45q814n6j	5	31	with	with	ADP
8s45q814n6j	5	32	highly	highly	ADV
8s45q814n6j	5	33	broadened	broaden	VERB
8s45q814n6j	5	34	and	and	CCONJ
8s45q814n6j	5	35	shifted	shift	VERB
8s45q814n6j	5	36	soret	soret	PROPN
8s45q814n6j	5	37	bands.small	bands.small	NOUN
8s45q814n6j	5	38	-	-	PUNCT
8s45q814n6j	5	39	angle	angle	NOUN
8s45q814n6j	5	40	neutron	neutron	NOUN
8s45q814n6j	5	41	scattering	scattering	NOUN
8s45q814n6j	5	42	(	(	PUNCT
8s45q814n6j	5	43	sans	sans	X
8s45q814n6j	5	44	)	)	PUNCT
8s45q814n6j	5	45	is	be	AUX
8s45q814n6j	5	46	used	use	VERB
8s45q814n6j	5	47	to	to	PART
8s45q814n6j	5	48	characterize	characterize	VERB
8s45q814n6j	5	49	the	the	DET
8s45q814n6j	5	50	aggregation	aggregation	NOUN
8s45q814n6j	5	51	of	of	ADP
8s45q814n6j	5	52	pure	pure	ADJ
8s45q814n6j	5	53	vanadyl	vanadyl	PROPN
8s45q814n6j	5	54	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	5	55	(	(	PUNCT
8s45q814n6j	5	56	vopps	vopps	VERB
8s45q814n6j	5	57	)	)	PUNCT
8s45q814n6j	5	58	as	as	ADV
8s45q814n6j	5	59	well	well	ADV
8s45q814n6j	5	60	as	as	ADP
8s45q814n6j	5	61	of	of	ADP
8s45q814n6j	5	62	asphaltenes	asphaltene	NOUN
8s45q814n6j	5	63	mixed	mix	VERB
8s45q814n6j	5	64	with	with	ADP
8s45q814n6j	5	65	either	either	CCONJ
8s45q814n6j	5	66	vopps	vopps	NOUN
8s45q814n6j	5	67	or	or	CCONJ
8s45q814n6j	5	68	synthetic	synthetic	ADJ
8s45q814n6j	5	69	porphyrins	porphyrin	NOUN
8s45q814n6j	5	70	.	.	PUNCT
8s45q814n6j	6	1	simple	simple	ADJ
8s45q814n6j	6	2	vopps	vopps	PROPN
8s45q814n6j	6	3	generally	generally	ADV
8s45q814n6j	6	4	form	form	VERB
8s45q814n6j	6	5	small	small	ADJ
8s45q814n6j	6	6	nanoaggregates	nanoaggregate	NOUN
8s45q814n6j	6	7	,	,	PUNCT
8s45q814n6j	6	8	likely	likely	ADJ
8s45q814n6j	6	9	dimers	dimer	NOUN
8s45q814n6j	6	10	and	and	CCONJ
8s45q814n6j	6	11	trimers	trimer	NOUN
8s45q814n6j	6	12	,	,	PUNCT
8s45q814n6j	6	13	and	and	CCONJ
8s45q814n6j	6	14	have	have	VERB
8s45q814n6j	6	15	low	low	ADJ
8s45q814n6j	6	16	solubility	solubility	NOUN
8s45q814n6j	6	17	in	in	ADP
8s45q814n6j	6	18	toluene	toluene	NOUN
8s45q814n6j	6	19	and	and	CCONJ
8s45q814n6j	6	20	form	form	VERB
8s45q814n6j	6	21	precipitates	precipitate	NOUN
8s45q814n6j	6	22	.	.	PUNCT
8s45q814n6j	7	1	more	more	ADV
8s45q814n6j	7	2	complex	complex	ADJ
8s45q814n6j	7	3	vopps	vopps	NOUN
8s45q814n6j	7	4	can	can	AUX
8s45q814n6j	7	5	form	form	VERB
8s45q814n6j	7	6	large	large	ADJ
8s45q814n6j	7	7	,	,	PUNCT
8s45q814n6j	7	8	asphaltene	asphaltene	NOUN
8s45q814n6j	7	9	-	-	PUNCT
8s45q814n6j	7	10	like	like	ADJ
8s45q814n6j	7	11	nanoaggregates	nanoaggregate	NOUN
8s45q814n6j	7	12	in	in	ADP
8s45q814n6j	7	13	toluene	toluene	NOUN
8s45q814n6j	7	14	.	.	PUNCT
8s45q814n6j	8	1	less	less	ADV
8s45q814n6j	8	2	functionalized	functionalize	VERB
8s45q814n6j	8	3	porphyrins	porphyrin	NOUN
8s45q814n6j	8	4	are	be	AUX
8s45q814n6j	8	5	shown	show	VERB
8s45q814n6j	8	6	to	to	PART
8s45q814n6j	8	7	inhibit	inhibit	VERB
8s45q814n6j	8	8	asphaltene	asphaltene	NOUN
8s45q814n6j	8	9	aggregation	aggregation	NOUN
8s45q814n6j	8	10	while	while	SCONJ
8s45q814n6j	8	11	ore	ore	NOUN
8s45q814n6j	8	12	functionalized	functionalize	VERB
8s45q814n6j	8	13	porphyrins	porphyrin	NOUN
8s45q814n6j	8	14	,	,	PUNCT
8s45q814n6j	8	15	potentially	potentially	ADV
8s45q814n6j	8	16	having	have	VERB
8s45q814n6j	8	17	one	one	NUM
8s45q814n6j	8	18	or	or	CCONJ
8s45q814n6j	8	19	more	more	ADJ
8s45q814n6j	8	20	intermolecular	intermolecular	ADJ
8s45q814n6j	8	21	interaction	interaction	NOUN
8s45q814n6j	8	22	sites	site	NOUN
8s45q814n6j	8	23	outside	outside	ADP
8s45q814n6j	8	24	of	of	ADP
8s45q814n6j	8	25	the	the	DET
8s45q814n6j	8	26	central	central	ADJ
8s45q814n6j	8	27	macrocycle	macrocycle	NOUN
8s45q814n6j	8	28	,	,	PUNCT
8s45q814n6j	8	29	tend	tend	VERB
8s45q814n6j	8	30	to	to	PART
8s45q814n6j	8	31	promote	promote	VERB
8s45q814n6j	8	32	aggregation.vanadyl	aggregation.vanadyl	PROPN
8s45q814n6j	8	33	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	8	34	purified	purify	VERB
8s45q814n6j	8	35	from	from	ADP
8s45q814n6j	8	36	a	a	DET
8s45q814n6j	8	37	north	north	ADJ
8s45q814n6j	8	38	american	american	ADJ
8s45q814n6j	8	39	crude	crude	ADJ
8s45q814n6j	8	40	oil	oil	NOUN
8s45q814n6j	8	41	vacuum	vacuum	NOUN
8s45q814n6j	8	42	residue	residue	NOUN
8s45q814n6j	8	43	are	be	AUX
8s45q814n6j	8	44	used	use	VERB
8s45q814n6j	8	45	in	in	ADP
8s45q814n6j	8	46	experiments	experiment	NOUN
8s45q814n6j	8	47	probing	probe	VERB
8s45q814n6j	8	48	the	the	DET
8s45q814n6j	8	49	interfacial	interfacial	ADJ
8s45q814n6j	8	50	phenomena	phenomenon	NOUN
8s45q814n6j	8	51	of	of	ADP
8s45q814n6j	8	52	the	the	DET
8s45q814n6j	8	53	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	8	54	as	as	ADV
8s45q814n6j	8	55	well	well	ADV
8s45q814n6j	8	56	as	as	ADP
8s45q814n6j	8	57	asphaltenes	asphaltene	NOUN
8s45q814n6j	8	58	-	-	PUNCT
8s45q814n6j	8	59	petroporphyrin	petroporphyrin	NOUN
8s45q814n6j	8	60	mixtures	mixture	NOUN
8s45q814n6j	8	61	.	.	PUNCT
8s45q814n6j	9	1	water	water	NOUN
8s45q814n6j	9	2	-	-	PUNCT
8s45q814n6j	9	3	oil	oil	NOUN
8s45q814n6j	9	4	emulsion	emulsion	NOUN
8s45q814n6j	9	5	stability	stability	NOUN
8s45q814n6j	9	6	as	as	ADP
8s45q814n6j	9	7	a	a	DET
8s45q814n6j	9	8	proxy	proxy	NOUN
8s45q814n6j	9	9	for	for	ADP
8s45q814n6j	9	10	film	film	NOUN
8s45q814n6j	9	11	strength	strength	NOUN
8s45q814n6j	9	12	is	be	AUX
8s45q814n6j	9	13	measured	measure	VERB
8s45q814n6j	9	14	using	use	VERB
8s45q814n6j	9	15	the	the	DET
8s45q814n6j	9	16	centrifugal	centrifugal	ADJ
8s45q814n6j	9	17	method	method	NOUN
8s45q814n6j	9	18	.	.	PUNCT
8s45q814n6j	10	1	interfacial	interfacial	ADJ
8s45q814n6j	10	2	tension	tension	NOUN
8s45q814n6j	10	3	and	and	CCONJ
8s45q814n6j	10	4	elasticity	elasticity	NOUN
8s45q814n6j	10	5	of	of	ADP
8s45q814n6j	10	6	asphaltene	asphaltene	NOUN
8s45q814n6j	10	7	and	and	CCONJ
8s45q814n6j	10	8	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	10	9	films	film	NOUN
8s45q814n6j	10	10	are	be	AUX
8s45q814n6j	10	11	recorded	record	VERB
8s45q814n6j	10	12	over	over	ADP
8s45q814n6j	10	13	tens	ten	NOUN
8s45q814n6j	10	14	of	of	ADP
8s45q814n6j	10	15	hours	hour	NOUN
8s45q814n6j	10	16	using	use	VERB
8s45q814n6j	10	17	an	an	DET
8s45q814n6j	10	18	interfacial	interfacial	ADJ
8s45q814n6j	10	19	dilational	dilational	ADJ
8s45q814n6j	10	20	rheometer	rheometer	NOUN
8s45q814n6j	10	21	.	.	PUNCT
8s45q814n6j	11	1	film	film	NOUN
8s45q814n6j	11	2	thicknesses	thickness	NOUN
8s45q814n6j	11	3	of	of	ADP
8s45q814n6j	11	4	asphaltene	asphaltene	NOUN
8s45q814n6j	11	5	films	film	NOUN
8s45q814n6j	11	6	with	with	ADP
8s45q814n6j	11	7	and	and	CCONJ
8s45q814n6j	11	8	without	without	ADP
8s45q814n6j	11	9	petroporphyirns	petroporphyirn	NOUN
8s45q814n6j	11	10	are	be	AUX
8s45q814n6j	11	11	estimated	estimate	VERB
8s45q814n6j	11	12	by	by	ADP
8s45q814n6j	11	13	fitting	fit	VERB
8s45q814n6j	11	14	multiple	multiple	ADJ
8s45q814n6j	11	15	models	model	NOUN
8s45q814n6j	11	16	to	to	ADP
8s45q814n6j	11	17	small	small	ADJ
8s45q814n6j	11	18	-	-	PUNCT
8s45q814n6j	11	19	angle	angle	NOUN
8s45q814n6j	11	20	neutron	neutron	NOUN
8s45q814n6j	11	21	scattering	scatter	VERB
8s45q814n6j	11	22	curves	curve	NOUN
8s45q814n6j	11	23	.	.	PUNCT
8s45q814n6j	12	1	uv	uv	NOUN
8s45q814n6j	12	2	-	-	PUNCT
8s45q814n6j	12	3	visible	visible	ADJ
8s45q814n6j	12	4	spectrophotometry	spectrophotometry	NOUN
8s45q814n6j	12	5	is	be	AUX
8s45q814n6j	12	6	used	use	VERB
8s45q814n6j	12	7	to	to	PART
8s45q814n6j	12	8	compare	compare	VERB
8s45q814n6j	12	9	petroporphyrin	petroporphyrin	NOUN
8s45q814n6j	12	10	content	content	NOUN
8s45q814n6j	12	11	in	in	ADP
8s45q814n6j	12	12	the	the	DET
8s45q814n6j	12	13	interfacial	interfacial	ADJ
8s45q814n6j	12	14	and	and	CCONJ
8s45q814n6j	12	15	bulk	bulk	ADJ
8s45q814n6j	12	16	material	material	NOUN
8s45q814n6j	12	17	of	of	ADP
8s45q814n6j	12	18	emulsions	emulsion	NOUN
8s45q814n6j	12	19	.	.	PUNCT
8s45q814n6j	13	1	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	13	2	are	be	AUX
8s45q814n6j	13	3	shown	show	VERB
8s45q814n6j	13	4	to	to	PART
8s45q814n6j	13	5	be	be	AUX
8s45q814n6j	13	6	highly	highly	ADV
8s45q814n6j	13	7	surface	surface	ADJ
8s45q814n6j	13	8	active	active	ADJ
8s45q814n6j	13	9	and	and	CCONJ
8s45q814n6j	13	10	have	have	VERB
8s45q814n6j	13	11	significant	significant	ADJ
8s45q814n6j	13	12	effects	effect	NOUN
8s45q814n6j	13	13	on	on	ADP
8s45q814n6j	13	14	asphaltene	asphaltene	ADJ
8s45q814n6j	13	15	film	film	NOUN
8s45q814n6j	13	16	development	development	NOUN
8s45q814n6j	13	17	.	.	PUNCT
8s45q814n6j	14	1	highly	highly	ADV
8s45q814n6j	14	2	-	-	PUNCT
8s45q814n6j	14	3	surface	surface	NOUN
8s45q814n6j	14	4	-	-	PUNCT
8s45q814n6j	14	5	active	active	ADJ
8s45q814n6j	14	6	petroporphyrins	petroporphyrin	NOUN
8s45q814n6j	14	7	form	form	NOUN
8s45q814n6j	14	8	monolayers	monolayer	NOUN
8s45q814n6j	14	9	at	at	ADP
8s45q814n6j	14	10	the	the	DET
8s45q814n6j	14	11	interface	interface	NOUN
8s45q814n6j	14	12	with	with	ADP
8s45q814n6j	14	13	very	very	ADV
8s45q814n6j	14	14	low	low	ADJ
8s45q814n6j	14	15	tension	tension	NOUN
8s45q814n6j	14	16	high	high	ADJ
8s45q814n6j	14	17	dilatational	dilatational	ADJ
8s45q814n6j	14	18	elasticity	elasticity	NOUN
8s45q814n6j	14	19	.	.	PUNCT
8s45q814n6j	15	1	however	however	ADV
8s45q814n6j	15	2	,	,	PUNCT
8s45q814n6j	15	3	this	this	DET
8s45q814n6j	15	4	high	high	ADJ
8s45q814n6j	15	5	elasticity	elasticity	NOUN
8s45q814n6j	15	6	does	do	AUX
8s45q814n6j	15	7	not	not	PART
8s45q814n6j	15	8	translate	translate	VERB
8s45q814n6j	15	9	to	to	PART
8s45q814n6j	15	10	film	film	VERB
8s45q814n6j	15	11	strength	strength	NOUN
8s45q814n6j	15	12	.	.	PUNCT