how did you know.
1	how	how	ADV	WRB	PronType=Int	4	advmod	4:advmod	_
2	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=2|Tense=Past|VerbForm=Fin	4	aux	4:aux	_
3	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	4	nsubj	4:nsubj	_
4	know	know	VERB	VB	VerbForm=Inf	0	root	0:root	SpaceAfter=No
5	.	.	PUNCT	.	_	4	punct	4:punct	_
