on ne sait pas trop.
1	on	on	PRON	_	Gender=Masc|Number=Sing|Person=3|PronType=Ind	3	nsubj	_	Overlap=Rhap_D2003-6
2	ne	ne	ADV	_	Polarity=Neg	3	advmod	_	Overlap=Rhap_D2003-6
3	sait	savoir	VERB	_	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	Overlap=Rhap_D2003-6
4	pas	pas	ADV	_	Polarity=Neg	5	advmod	_	Overlap=Rhap_D2003-6
5	trop	trop	ADV	_	_	3	advmod	_	Overlap=Rhap_D2003-6|SpaceAfter=No
6	.	.	PUNCT	_	_	3	punct	_	Overlap=Rhap_D2003-6
