Once Bet was asleep it was impossible to wake her up.
1	Once	once	SCONJ	IN	_	4	mark	4:mark	Discourse=context-circumstance:104->105:0
2	Bet	Bet	PROPN	NNP	Number=Sing	4	nsubj	4:nsubj	Entity=(60-person-giv:act-cf1*-1-coref)
3	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	cop	4:cop	_
4	asleep	asleep	ADJ	JJ	Degree=Pos	7	advcl	7:advcl:once	_
5	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	7	expl	7:expl	Discourse=elaboration-additional:105->103:0|Entity=(61-event-new-cf2-1-cata)
6	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	7	cop	7:cop	_
7	impossible	impossible	ADJ	JJ	Degree=Pos	0	root	0:root	_
8	to	to	PART	TO	_	9	mark	9:mark	Entity=(61-event-acc:com-cf2-2-coref
9	wake	wake	VERB	VB	VerbForm=Inf	7	csubj	7:csubj	_
10	her	she	PRON	PRP	Case=Acc|Gender=Fem|Number=Sing|Person=3|PronType=Prs	9	obj	9:obj	Entity=(60-person-giv:act-cf1*-1-ana)
11	up	up	ADP	RP	_	9	compound:prt	9:compound:prt	Entity=61)|SpaceAfter=No
12	.	.	PUNCT	.	_	7	punct	7:punct	_
