EDIT: How did I know...
1	EDIT	edit	NOUN	NN	Number=Sing	0	root	0:root	SpaceAfter=No
2	:	:	PUNCT	:	_	1	punct	1:punct	_
3	How	how	ADV	WRB	PronType=Int	6	advmod	6:advmod	_
4	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	6	aux	6:aux	_
5	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	6	nsubj	6:nsubj	_
6	know	know	VERB	VB	VerbForm=Inf	1	appos	1:appos	SpaceAfter=No
7	...	...	PUNCT	.	_	1	punct	1:punct	_
