First, our experimental subjects lived in a large enclosure under conditions that allowed them to exercise all day long.
1	First	first	ADV	RB	Degree=Pos|NumType=Ord	6	advmod	6:advmod	Discourse=explanation-evidence:84->80:4|SpaceAfter=No
2	,	,	PUNCT	,	_	1	punct	1:punct	_
3	our	our	PRON	PRP$	Case=Gen|Number=Plur|Person=1|Poss=Yes|PronType=Prs	5	nmod:poss	5:nmod:poss	Entity=(19-animal-giv:inact-cf1-3-coref(2-person-giv:act-cf2*-1-ana)
4	experimental	experimental	ADJ	JJ	Degree=Pos	5	amod	5:amod	_
5	subjects	subject	NOUN	NNS	Number=Plur	6	nsubj	6:nsubj	Entity=19)
6	lived	live	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
7	in	in	ADP	IN	_	10	case	10:case	_
8	a	a	DET	DT	Definite=Ind|PronType=Art	10	det	10:det	Entity=(131-place-new-cf4-3-sgl
9	large	large	ADJ	JJ	Degree=Pos	10	amod	10:amod	_
10	enclosure	enclosure	NOUN	NN	Number=Sing	6	obl	6:obl:in	Entity=131)
11	under	under	ADP	IN	_	12	case	12:case	_
12	conditions	condition	NOUN	NNS	Number=Plur	6	obl	6:obl:under|14:nsubj	Entity=(132-abstract-new-cf5-1-sgl
13	that	that	PRON	WDT	PronType=Rel	14	nsubj	12:ref	Discourse=elaboration-attribute:85->84:0
14	allowed	allow	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	12	acl:relcl	12:acl:relcl	_
15	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	14	obj	14:obj|17:nsubj:xsubj	Entity=(19-animal-giv:act-cf1-1-ana)
16	to	to	PART	TO	_	17	mark	17:mark	_
17	exercise	exercise	VERB	VB	VerbForm=Inf	14	xcomp	14:xcomp	_
18	all	all	DET	DT	PronType=Tot	19	det	19:det	Entity=(133-time-new-cf3-2-sgl
19	day	day	NOUN	NN	Number=Sing	17	obl:tmod	17:obl:tmod	Entity=133)
20	long	long	ADV	RB	Degree=Pos	19	amod	19:amod	Entity=132)|SpaceAfter=No
21	.	.	PUNCT	.	_	6	punct	6:punct	_
