We also know that he wrote books.
1	We	we	PRON	PERS-P1PL-NOM	Case=Nom|Number=Plur|Person=1|PronType=Prs	3	nsubj	_	_
2	also	also	ADV	_	_	3	advmod	_	_
3	know	know	VERB	PRES	Mood=Ind|Tense=Pres|VerbForm=Fin	0	root	_	_
4	that	that	SCONJ	_	_	6	mark	_	_
5	he	he	PRON	PERS-P3SG-NOM	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	_
6	wrote	write	VERB	PAST	Mood=Ind|Tense=Past|VerbForm=Fin	3	ccomp	_	_
7	books	book	NOUN	PL-NOM	Number=Plur	6	obj	_	SpaceAfter=No
8	.	.	PUNCT	Period	_	3	punct	_	_
