(The source of the previous sentence is unknown.
1	(	(	PUNCT	-LRB-	_	9	punct	9:punct	Discourse=attribution-positive:93->74:2|SpaceAfter=No
2	The	the	DET	DT	Definite=Def|PronType=Art	3	det	3:det	Entity=(128-abstract-new-cf2-2-sgl
3	source	source	NOUN	NN	Number=Sing	9	nsubj	9:nsubj	_
4	of	of	ADP	IN	_	7	case	7:case	_
5	the	the	DET	DT	Definite=Def|PronType=Art	7	det	7:det	Entity=(93-abstract-acc:com-cf1*-3-coref
6	previous	previous	ADJ	JJ	Degree=Pos	7	amod	7:amod	_
7	sentence	sentence	NOUN	NN	Number=Sing	3	nmod	3:nmod:of	Entity=93)128)
8	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	9	cop	9:cop	_
9	unknown	unknown	ADJ	JJ	Degree=Pos|Polarity=Neg	0	root	0:root	SpaceAfter=No
10	.	.	PUNCT	.	_	9	punct	9:punct	_
