They didn't know the room was too big, because they didn't have anybody there.
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	4	nsubj	4:nsubj	Discourse=attribution-negative:19->20:0|Entity=(13-person-giv:act-cf1*-1-ana)
2-3	didn't	_	_	_	_	_	_	_	_
2	did	do	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	4	aux	4:aux	_
3	n't	not	PART	RB	Polarity=Neg	4	advmod	4:advmod	_
4	know	know	VERB	VB	VerbForm=Inf	0	root	0:root	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	Discourse=causal-result:20->21:0|Entity=(17-place-acc:com-cf2-2-coref
6	room	room	NOUN	NN	Number=Sing	9	nsubj	9:nsubj	Entity=17)
7	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	9	cop	9:cop	_
8	too	too	ADV	RB	Degree=Pos	9	advmod	9:advmod	_
9	big	big	ADJ	JJ	Degree=Pos	4	ccomp	4:ccomp	SpaceAfter=No
10	,	,	PUNCT	,	_	15	punct	15:punct	_
11	because	because	SCONJ	IN	_	15	mark	15:mark	Discourse=joint-list_m:21->18:1
12	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	15	nsubj	15:nsubj	Entity=(13-person-giv:act-cf1*-1-ana)
13-14	didn't	_	_	_	_	_	_	_	_
13	did	do	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	15	aux	15:aux	_
14	n't	not	PART	RB	Polarity=Neg	15	advmod	15:advmod	_
15	have	have	VERB	VB	VerbForm=Inf	4	advcl	4:advcl:because	_
16	anybody	anybody	PRON	NN	Number=Sing|PronType=Ind	15	obj	15:obj	_
17	there	there	ADV	RB	PronType=Dem	15	advmod	15:advmod	Entity=(17-place-giv:act-cf2-1-coref)|SpaceAfter=No
18	.	.	PUNCT	.	_	4	punct	4:punct	_
