I don't know why.
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	4	nsubj	4:nsubj	Discourse=evaluation-comment:37->36:0|Entity=(8-person-giv:inact-cf1-1-ana-Tina_McKenzie)
2-3	don't	_	_	_	_	_	_	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|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	why	why	SCONJ	WRB	PronType=Int	4	obj	4:obj	SpaceAfter=No
6	.	.	PUNCT	.	_	4	punct	4:punct	_
