Why do you think it is so?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	4:advmod	Discourse=attribution-positive:47->48:0
2	do	do	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	4	aux	4:aux	_
3	you	you	PRON	PRP	Case=Nom|Number=Sing|Person=2|PronType=Prs	4	nsubj	4:nsubj	Entity=(3-person-giv:inact-cf2-1-ana-Aner_Shalev)
4	think	think	VERB	VB	VerbForm=Inf	0	root	0:root	_
5	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	6:nsubj	Discourse=topic-question:48->50:5|Entity=(56-event-giv:act-cf1*-1-coref)
6	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	ccomp	4:ccomp	_
7	so	so	ADV	RB	_	6	advmod	6:advmod	SpaceAfter=No
8	?	?	PUNCT	.	_	4	punct	4:punct	_
