It’s really hard to tell.
1-2	It’s	_	_	_	_	_	_	_	_
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	4:nsubj	Discourse=adversative-concession:114->116:3
2	’s	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	cop	4:cop	_
3	really	really	ADV	RB	Degree=Pos	4	advmod	4:advmod	_
4	hard	hard	ADJ	JJ	Degree=Pos	0	root	0:root	_
5	to	to	PART	TO	_	6	mark	6:mark	_
6	tell	tell	VERB	VB	VerbForm=Inf	4	acl	4:acl:to	SpaceAfter=No
7	.	.	PUNCT	.	_	4	punct	4:punct	_
