on on apprend sur nous.
1	on	on	PRON	_	Gender=Masc|Number=Sing|Person=3|PronType=Ind	2	reparandum	_	_
2	on	on	PRON	_	Gender=Masc|Number=Sing|Person=3|PronType=Ind	3	nsubj	_	_
3	apprend	apprendre	VERB	_	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	sur	sur	ADP	_	_	5	case	_	_
5	nous	nous	PRON	_	_	3	obl:mod	_	SpaceAfter=No
6	.	.	PUNCT	_	_	3	punct	_	_
