It's principle except a number of cases, for example, the babies are orphans or not to have father.
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	principle	principle	ADJ	JJ	Degree=Pos	0	root	0:root	_
4	except	except	ADP	IN	_	6	case	6:case	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	6:det	_
6	number	number	NOUN	NN	Number=Sing	3	obl	3:obl:except	_
7	of	of	ADP	IN	_	8	case	8:case	_
8	cases	case	NOUN	NNS	Number=Plur	6	nmod	6:nmod:of	SpaceAfter=No
9	,	,	PUNCT	,	_	3	punct	3:punct	_
10	for	for	ADP	IN	_	11	case	11:case	_
11	example	example	NOUN	NN	Number=Sing	16	obl	16:obl:for	SpaceAfter=No
12	,	,	PUNCT	,	_	16	punct	16:punct	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	14:det	_
14	babies	baby	NOUN	NNS	Number=Plur	16	nsubj	16:nsubj|20:nsubj	_
15	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	16	cop	16:cop	_
16	orphans	orphan	NOUN	NNS	Number=Plur	3	parataxis	3:parataxis	_
17	or	or	CCONJ	CC	_	20	cc	20:cc	_
18	not	not	PART	RB	_	20	advmod	20:advmod	_
19	to	to	PART	TO	_	20	mark	20:mark	_
20	have	have	VERB	VB	VerbForm=Inf	16	conj	16:conj:or	_
21	father	father	NOUN	NN	Number=Sing	20	obj	20:obj	SpaceAfter=No
22	.	.	PUNCT	.	_	3	punct	3:punct	_
