You'll have to tell me what it's about first.
1	You	you	PRON	PERS-P2	_	5	nsubj	_	SpaceAfter=No
2	'll	will	AUX	PRES-AUX	VerbForm=Fin	5	aux	_	_
3	have	have	AUX	INF-AUX	VerbForm=Inf	5	aux	_	_
4	to	to	PART	_	_	5	mark	_	_
5	tell	tell	VERB	INF	VerbForm=Inf	0	root	_	_
6	me	I	PRON	PERS-P1SG-ACC	Case=Acc|Number=Sing|Person=1|PronType=Prs	5	obj	_	_
7	what	what	PRON	WH	PronType=Int	9	dislocated	_	_
8	it	it	PRON	PERS-SG	_	9	nsubj	_	SpaceAfter=No
9	's	be	VERB	PRES	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	ccomp	_	_
10	about	about	ADP	_	_	7	case	_	_
11	first	first	ADV	_	_	9	advmod	_	SpaceAfter=No
12	.	.	PUNCT	Period	_	5	punct	_	_
