To be precise, we know that he wrote mystery novels.
1	To	to	PART	_	_	3	mark	_	_
2	be	be	AUX	INF	VerbForm=Inf	3	cop	_	_
3	precise	precise	ADJ	POS	Degree=Pos	6	advmod	_	SpaceAfter=No
4	,	,	PUNCT	Comma	_	3	punct	_	_
5	we	we	PRON	PERS-P1PL-NOM	Case=Nom|Number=Plur|Person=1|PronType=Prs	6	nsubj	_	_
6	know	know	VERB	PRES	Mood=Ind|Tense=Pres|VerbForm=Fin	0	root	_	_
7	that	that	SCONJ	_	_	9	mark	_	_
8	he	he	PRON	PERS-P3SG-NOM	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	9	nsubj	_	_
9	wrote	write	VERB	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	6	ccomp	_	_
10	mystery	mystery	NOUN	SG-NOM	Number=Sing	11	compound	_	_
11	novels	novel	NOUN	PL-NOM	Number=Plur	9	obj	_	SpaceAfter=No
12	.	.	PUNCT	Period	_	6	punct	_	_
