It's unfortunate that bmil believed that his 'perfect' dog was not given the right opportunity to prove himself.
1-2	It's	_	_	_	_	_	_	_	_
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	3:nsubj	_
2	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	3:cop	_
3	unfortunate	unfortunate	ADJ	JJ	Degree=Pos	0	root	0:root	_
4	that	that	SCONJ	IN	_	6	mark	6:mark	_
5	bmil	bmil	PROPN	NNP	Number=Sing	6	nsubj	6:nsubj	_
6	believed	believe	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	ccomp	3:ccomp	_
7	that	that	SCONJ	IN	_	15	mark	15:mark	_
8	his	his	PRON	PRP$	Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	12	nmod:poss	12:nmod:poss	_
9	'	'	PUNCT	``	_	12	punct	12:punct	SpaceAfter=No
10	perfect	perfect	ADJ	JJ	Degree=Pos	12	amod	12:amod	SpaceAfter=No
11	'	'	PUNCT	''	_	12	punct	12:punct	_
12	dog	dog	NOUN	NN	Number=Sing	15	nsubj:pass	15:nsubj:pass	_
13	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	15	aux:pass	15:aux:pass	_
14	not	not	PART	RB	_	15	advmod	15:advmod	_
15	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	ccomp	6:ccomp	_
16	the	the	DET	DT	Definite=Def|PronType=Art	18	det	18:det	_
17	right	right	ADJ	JJ	Degree=Pos	18	amod	18:amod	_
18	opportunity	opportunity	NOUN	NN	Number=Sing	15	obj	15:obj	_
19	to	to	PART	TO	_	20	mark	20:mark	_
20	prove	prove	VERB	VB	VerbForm=Inf	18	acl	18:acl:to	_
21	himself	himself	PRON	PRP	Case=Acc|Gender=Masc|Number=Sing|Person=3|PronType=Prs|Reflex=Yes	20	obj	20:obj	SpaceAfter=No
22	.	.	PUNCT	.	_	3	punct	3:punct	_
