Leur collaboration commence en 1989.
1	Leur	son	DET	_	Number=Sing|Number[psor]=Plur|Person[psor]=3|Poss=Yes|PronType=Prs	2	det	_	wordform=leur
2	collaboration	collaboration	NOUN	_	Gender=Fem|Number=Sing	3	nsubj	_	_
3	commence	commencer	VERB	_	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	en	en	ADP	_	_	5	case	_	_
5	1989	1989	NUM	_	Number=Plur	3	obl:mod	_	SpaceAfter=No
6	.	.	PUNCT	_	_	3	punct	_	_
