id	sid	tid	token	lemma	pos
WOS-000181379100008	1	1	contributions	contribution	NOUN
WOS-000181379100008	1	2	to	to	ADP
WOS-000181379100008	1	3	the	the	DET
WOS-000181379100008	1	4	'	'	PUNCT
WOS-000181379100008	1	5	school	school	NOUN
WOS-000181379100008	1	6	choice	choice	NOUN
WOS-000181379100008	1	7	'	'	PUNCT
WOS-000181379100008	1	8	debate	debate	NOUN
WOS-000181379100008	1	9	have	have	AUX
WOS-000181379100008	1	10	exploded	explode	VERB
WOS-000181379100008	1	11	in	in	ADP
WOS-000181379100008	1	12	the	the	DET
WOS-000181379100008	1	13	last	last	ADJ
WOS-000181379100008	1	14	ten	ten	NUM
WOS-000181379100008	1	15	years	year	NOUN
WOS-000181379100008	1	16	.	.	PUNCT
WOS-000181379100008	2	1	most	most	ADJ
WOS-000181379100008	2	2	of	of	ADP
WOS-000181379100008	2	3	the	the	DET
WOS-000181379100008	2	4	recent	recent	ADJ
WOS-000181379100008	2	5	contributions	contribution	NOUN
WOS-000181379100008	2	6	have	have	AUX
WOS-000181379100008	2	7	come	come	VERB
WOS-000181379100008	2	8	from	from	ADP
WOS-000181379100008	2	9	the	the	DET
WOS-000181379100008	2	10	us	us	PROPN
WOS-000181379100008	2	11	on	on	ADP
WOS-000181379100008	2	12	the	the	DET
WOS-000181379100008	2	13	back	back	NOUN
WOS-000181379100008	2	14	of	of	ADP
WOS-000181379100008	2	15	the	the	DET
WOS-000181379100008	2	16	american	american	PROPN
WOS-000181379100008	2	17	revolution	revolution	PROPN
WOS-000181379100008	2	18	in	in	ADP
WOS-000181379100008	2	19	market	market	NOUN
WOS-000181379100008	2	20	-	-	PUNCT
WOS-000181379100008	2	21	led	lead	VERB
WOS-000181379100008	2	22	school	school	NOUN
WOS-000181379100008	2	23	choice	choice	NOUN
WOS-000181379100008	2	24	experiments	experiment	NOUN
WOS-000181379100008	2	25	.	.	PUNCT
WOS-000181379100008	3	1	however	however	ADV
WOS-000181379100008	3	2	,	,	PUNCT
WOS-000181379100008	3	3	the	the	DET
WOS-000181379100008	3	4	central	central	ADJ
WOS-000181379100008	3	5	idea	idea	NOUN
WOS-000181379100008	3	6	has	have	VERB
WOS-000181379100008	3	7	a	a	DET
WOS-000181379100008	3	8	long	long	ADJ
WOS-000181379100008	3	9	pedigree	pedigree	NOUN
WOS-000181379100008	3	10	and	and	CCONJ
WOS-000181379100008	3	11	understanding	understand	VERB
WOS-000181379100008	3	12	recent	recent	ADJ
WOS-000181379100008	3	13	contributions	contribution	NOUN
WOS-000181379100008	3	14	like	like	ADP
WOS-000181379100008	3	15	the	the	DET
WOS-000181379100008	3	16	new	new	ADJ
WOS-000181379100008	3	17	book	book	NOUN
WOS-000181379100008	3	18	edited	edit	VERB
WOS-000181379100008	3	19	by	by	ADP
WOS-000181379100008	3	20	caroline	caroline	PROPN
WOS-000181379100008	3	21	hoxby	hoxby	PROPN
WOS-000181379100008	3	22	requires	require	VERB
WOS-000181379100008	3	23	some	some	DET
WOS-000181379100008	3	24	background	background	NOUN
WOS-000181379100008	3	25	.	.	PUNCT
WOS-000181379100008	4	1	the	the	DET
WOS-000181379100008	4	2	first	first	ADJ
WOS-000181379100008	4	3	thing	thing	NOUN
WOS-000181379100008	4	4	to	to	PART
WOS-000181379100008	4	5	understand	understand	VERB
WOS-000181379100008	4	6	is	be	AUX
WOS-000181379100008	4	7	that	that	SCONJ
WOS-000181379100008	4	8	in	in	ADP
WOS-000181379100008	4	9	this	this	DET
WOS-000181379100008	4	10	book	book	NOUN
WOS-000181379100008	4	11	the	the	DET
WOS-000181379100008	4	12	phrase	phrase	NOUN
WOS-000181379100008	4	13	'	'	PUNCT
WOS-000181379100008	4	14	school	school	NOUN
WOS-000181379100008	4	15	choice	choice	NOUN
WOS-000181379100008	4	16	'	'	PUNCT
WOS-000181379100008	4	17	is	be	AUX
WOS-000181379100008	4	18	used	use	VERB
WOS-000181379100008	4	19	synonymously	synonymously	ADV
WOS-000181379100008	4	20	with	with	ADP
WOS-000181379100008	4	21	the	the	DET
WOS-000181379100008	4	22	idea	idea	NOUN
WOS-000181379100008	4	23	of	of	ADP
WOS-000181379100008	4	24	a	a	DET
WOS-000181379100008	4	25	voucher	voucher	NOUN
WOS-000181379100008	4	26	system	system	NOUN
WOS-000181379100008	4	27	.	.	PUNCT
WOS-000181379100008	5	1	unlike	unlike	ADP
WOS-000181379100008	5	2	in	in	ADP
WOS-000181379100008	5	3	other	other	ADJ
WOS-000181379100008	5	4	countries	country	NOUN
WOS-000181379100008	5	5	,	,	PUNCT
WOS-000181379100008	5	6	the	the	DET
WOS-000181379100008	5	7	context	context	NOUN
WOS-000181379100008	5	8	of	of	ADP
WOS-000181379100008	5	9	the	the	PRON
WOS-000181379100008	5	10	,	,	PUNCT
WOS-000181379100008	5	11	school	school	NOUN
WOS-000181379100008	5	12	choice	choice	NOUN
WOS-000181379100008	5	13	'	'	PUNCT
WOS-000181379100008	5	14	debate	debate	NOUN
WOS-000181379100008	5	15	in	in	ADP
WOS-000181379100008	5	16	the	the	DET
WOS-000181379100008	5	17	us	us	PROPN
WOS-000181379100008	5	18	refers	refer	VERB
WOS-000181379100008	5	19	to	to	ADP
WOS-000181379100008	5	20	the	the	DET
WOS-000181379100008	5	21	extent	extent	NOUN
WOS-000181379100008	5	22	to	to	PART
WOS-000181379100008	5	23	which	which	PRON
WOS-000181379100008	5	24	market	market	NOUN
WOS-000181379100008	5	25	principles	principle	NOUN
WOS-000181379100008	5	26	can	can	AUX
WOS-000181379100008	5	27	and	and	CCONJ
WOS-000181379100008	5	28	should	should	AUX
WOS-000181379100008	5	29	be	be	AUX
WOS-000181379100008	5	30	used	use	VERB
WOS-000181379100008	5	31	in	in	ADP
WOS-000181379100008	5	32	education	education	NOUN
WOS-000181379100008	5	33	and	and	CCONJ
WOS-000181379100008	5	34	the	the	DET
WOS-000181379100008	5	35	details	detail	NOUN
WOS-000181379100008	5	36	of	of	ADP
WOS-000181379100008	5	37	the	the	DET
WOS-000181379100008	5	38	type	type	NOUN
WOS-000181379100008	5	39	of	of	ADP
WOS-000181379100008	5	40	voucher	voucher	NOUN
WOS-000181379100008	5	41	(	(	PUNCT
WOS-000181379100008	5	42	or	or	CCONJ
WOS-000181379100008	5	43	charter	charter	NOUN
WOS-000181379100008	5	44	school	school	NOUN
WOS-000181379100008	5	45	)	)	PUNCT
WOS-000181379100008	5	46	scheme	scheme	NOUN
WOS-000181379100008	5	47	and	and	CCONJ
WOS-000181379100008	5	48	its	its	PRON
WOS-000181379100008	5	49	possible	possible	ADJ
WOS-000181379100008	5	50	effects	effect	NOUN
WOS-000181379100008	5	51	.	.	PUNCT
WOS-000181379100008	6	1	this	this	DET
WOS-000181379100008	6	2	article	article	NOUN
WOS-000181379100008	6	3	explains	explain	VERB
WOS-000181379100008	6	4	where	where	SCONJ
WOS-000181379100008	6	5	the	the	DET
WOS-000181379100008	6	6	school	school	NOUN
WOS-000181379100008	6	7	choice	choice	NOUN
WOS-000181379100008	6	8	idea	idea	NOUN
WOS-000181379100008	6	9	came	come	VERB
WOS-000181379100008	6	10	from	from	ADP
WOS-000181379100008	6	11	and	and	CCONJ
WOS-000181379100008	6	12	briefly	briefly	ADV
WOS-000181379100008	6	13	summarises	summarise	VERB
WOS-000181379100008	6	14	the	the	DET
WOS-000181379100008	6	15	state	state	NOUN
WOS-000181379100008	6	16	of	of	ADP
WOS-000181379100008	6	17	the	the	DET
WOS-000181379100008	6	18	debate	debate	NOUN
WOS-000181379100008	6	19	.	.	PUNCT
WOS-000181379100008	7	1	of	of	ADP
WOS-000181379100008	7	2	necessity	necessity	NOUN
WOS-000181379100008	7	3	,	,	PUNCT
WOS-000181379100008	7	4	we	we	PRON
WOS-000181379100008	7	5	review	review	VERB
WOS-000181379100008	7	6	what	what	PRON
WOS-000181379100008	7	7	is	be	AUX
WOS-000181379100008	7	8	happening	happen	VERB
WOS-000181379100008	7	9	in	in	ADP
WOS-000181379100008	7	10	the	the	DET
WOS-000181379100008	7	11	us	us	PROPN
WOS-000181379100008	7	12	in	in	ADP
WOS-000181379100008	7	13	school	school	NOUN
WOS-000181379100008	7	14	choice	choice	NOUN
WOS-000181379100008	7	15	reform	reform	NOUN
WOS-000181379100008	7	16	,	,	PUNCT
WOS-000181379100008	7	17	before	before	ADP
WOS-000181379100008	7	18	examining	examine	VERB
WOS-000181379100008	7	19	what	what	PRON
WOS-000181379100008	7	20	is	be	AUX
WOS-000181379100008	7	21	new	new	ADJ
WOS-000181379100008	7	22	in	in	ADP
WOS-000181379100008	7	23	the	the	DET
WOS-000181379100008	7	24	hoxby	hoxby	PROPN
WOS-000181379100008	7	25	volume	volume	NOUN
WOS-000181379100008	7	26	.	.	PUNCT
WOS-000181379100008	8	1	we	we	PRON
WOS-000181379100008	8	2	then	then	ADV
WOS-000181379100008	8	3	reflect	reflect	VERB
WOS-000181379100008	8	4	on	on	ADP
WOS-000181379100008	8	5	what	what	PRON
WOS-000181379100008	8	6	is	be	AUX
WOS-000181379100008	8	7	missing	miss	VERB
WOS-000181379100008	8	8	so	so	ADV
WOS-000181379100008	8	9	far	far	ADV
WOS-000181379100008	8	10	in	in	ADP
WOS-000181379100008	8	11	this	this	DET
WOS-000181379100008	8	12	debate	debate	NOUN
WOS-000181379100008	8	13	exploring	explore	VERB
WOS-000181379100008	8	14	the	the	DET
WOS-000181379100008	8	15	idea	idea	NOUN
WOS-000181379100008	8	16	that	that	SCONJ
WOS-000181379100008	8	17	educational	educational	ADJ
WOS-000181379100008	8	18	outputs	output	NOUN
WOS-000181379100008	8	19	are	be	AUX
WOS-000181379100008	8	20	not	not	PART
WOS-000181379100008	8	21	unidimensional	unidimensional	ADJ
WOS-000181379100008	8	22	and	and	CCONJ
WOS-000181379100008	8	23	that	that	SCONJ
WOS-000181379100008	8	24	this	this	PRON
WOS-000181379100008	8	25	can	can	AUX
WOS-000181379100008	8	26	induce	induce	VERB
WOS-000181379100008	8	27	incentive	incentive	NOUN
WOS-000181379100008	8	28	problems	problem	NOUN
WOS-000181379100008	8	29	.	.	PUNCT
WOS-000181379100008	9	1	we	we	PRON
WOS-000181379100008	9	2	also	also	ADV
WOS-000181379100008	9	3	suggest	suggest	VERB
WOS-000181379100008	9	4	that	that	SCONJ
WOS-000181379100008	9	5	the	the	DET
WOS-000181379100008	9	6	key	key	ADJ
WOS-000181379100008	9	7	concept	concept	NOUN
WOS-000181379100008	9	8	of	of	ADP
WOS-000181379100008	9	9	accountability	accountability	NOUN
WOS-000181379100008	9	10	has	have	AUX
WOS-000181379100008	9	11	been	be	AUX
WOS-000181379100008	9	12	given	give	VERB
WOS-000181379100008	9	13	insufficient	insufficient	ADJ
WOS-000181379100008	9	14	attention	attention	NOUN
WOS-000181379100008	9	15	in	in	ADP
WOS-000181379100008	9	16	this	this	DET
WOS-000181379100008	9	17	debate	debate	NOUN
WOS-000181379100008	9	18	.	.	PUNCT