This is car number 3 we've purchased through them.
1	This	this	PRON	DT	Number=Sing|PronType=Dem	3	nsubj	3:nsubj	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	3:cop	_
3	car	car	NOUN	NN	Number=Sing	0	root	0:root	_
4	number	number	NOUN	NN	Number=Sing	3	compound	3:compound	_
5	3	3	NUM	CD	NumForm=Digit|NumType=Card	4	nummod	4:nummod	_
6-7	we've	_	_	_	_	_	_	_	_
6	we	we	PRON	PRP	Case=Nom|Number=Plur|Person=1|PronType=Prs	8	nsubj	8:nsubj	_
7	've	have	AUX	VBP	Mood=Ind|Number=Plur|Person=1|Tense=Pres|VerbForm=Fin	8	aux	8:aux	_
8	purchased	purchase	VERB	VBN	Tense=Past|VerbForm=Part	3	acl:relcl	3:acl:relcl	_
9	through	through	ADP	IN	_	10	case	10:case	_
10	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	8	obl	8:obl:through	SpaceAfter=No
11	.	.	PUNCT	.	_	3	punct	3:punct	_
