It had been a marriage of convenience to preserve her family's fortune.
1	It	it	PRON	PE	Number=Sing|Person=3|PronType=Prs	5	nsubj	_	_
2	had	have	AUX	VA	Mood=Ind|Person=3|Tense=Past|VerbForm=Fin	5	aux	_	_
3	been	be	AUX	V	Tense=Past|VerbForm=Part	5	cop	_	_
4	a	a	DET	RI	Definite=Ind|Number=Sing|PronType=Art	5	det	_	_
5	marriage	marriage	NOUN	S	Number=Sing	0	root	_	_
6	of	of	ADP	E	_	7	case	_	_
7	convenience	convenience	NOUN	S	Number=Sing	5	nmod	_	_
8	to	to	PART	PART	_	9	mark	_	_
9	preserve	preserve	VERB	V	VerbForm=Inf	7	acl	_	_
10	her	her	DET	AP	Poss=Yes|PronType=Prs	11	nmod:poss	_	_
11	family	family	NOUN	S	Number=Sing	13	nmod	_	SpaceAfter=No
12	's	's	PART	PART	_	11	case	_	_
13	fortune	fortune	NOUN	S	Number=Sing	9	obj	_	SpaceAfter=No
14	.	.	PUNCT	FS	_	5	punct	_	_
