On appelle les pompiers.
1	On	on	PRON	_	Gender=Masc|Number=Sing|Person=3|PronType=Ind	2	nsubj	_	wordform=on
2	appelle	appeler	VERB	_	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	les	le	DET	_	Definite=Def|Number=Plur|PronType=Art	4	det	_	_
4	pompiers	pompier	NOUN	_	Gender=Masc|Number=Plur	2	obj	_	SpaceAfter=No
5	.	.	PUNCT	_	_	2	punct	_	_
