They didn't know the air-conditioner didn't work.
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	4	nsubj	4:nsubj	Discourse=attribution-negative:16->17:0|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	8	det	8:det	Discourse=causal-cause:17->18:0|Entity=(15-object-acc:com-cf2-4-sgl
6	air	air	NOUN	NN	Number=Sing	8	compound	8:compound	SpaceAfter=No|XML=<w>
7	-	-	PUNCT	HYPH	_	6	punct	6:punct	SpaceAfter=No
8	conditioner	conditioner	NOUN	NN	Number=Sing	11	nsubj	11:nsubj	Entity=15)|XML=</w>
9-10	didn't	_	_	_	_	_	_	_	_
9	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	11	aux	11:aux	_
10	n't	not	PART	RB	Polarity=Neg	11	advmod	11:advmod	_
11	work	work	VERB	VB	VerbForm=Inf	4	ccomp	4:ccomp	SpaceAfter=No
12	.	.	PUNCT	.	_	4	punct	4:punct	_
