Facebook allows members to send invites to their contacts by entering an email address or by uploading their contacts.
1	Facebook	Facebook	PROPN	SP	_	2	nsubj	_	_
2	allows	allow	VERB	V	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	members	member	NOUN	S	Number=Plur	2	obj	_	_
4	to	to	PART	PART	_	5	mark	_	_
5	send	send	VERB	V	VerbForm=Inf	2	xcomp	_	_
6	invites	invite	NOUN	S	Number=Plur	5	obj	_	_
7	to	to	ADP	E	_	9	case	_	_
8	their	their	DET	AP	Poss=Yes|PronType=Prs	9	nmod:poss	_	_
9	contacts	contact	NOUN	S	Number=Plur	5	obl	_	_
10	by	by	ADP	E	_	11	mark	_	_
11	entering	enter	VERB	V	VerbForm=Ger	5	advcl	_	_
12	an	a	DET	RI	Definite=Ind|Number=Sing|PronType=Art	14	det	_	_
13	email	email	NOUN	S	Number=Sing	14	nmod	_	_
14	address	address	NOUN	S	Number=Sing	11	obj	_	_
15	or	or	CCONJ	CC	_	17	cc	_	_
16	by	by	ADP	E	_	17	mark	_	_
17	uploading	upload	VERB	V	VerbForm=Ger	11	conj	_	_
18	their	their	DET	AP	Poss=Yes|PronType=Prs	19	nmod:poss	_	_
19	contacts	contact	NOUN	S	Number=Plur	17	obj	_	SpaceAfter=No
20	.	.	PUNCT	FS	_	2	punct	_	_
