Some refused to leave, but so many were unable to.
1	Some	some	DET	DT	_	2	nsubj	2:nsubj|4:nsubj:xsubj	_
2	refused	refuse	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	to	to	PART	TO	_	4	mark	4:mark	_
4	leave	leave	VERB	VB	VerbForm=Inf	2	xcomp	2:xcomp	SpaceAfter=No
5	,	,	PUNCT	,	_	10	punct	10:punct	_
6	but	but	CCONJ	CC	_	10	cc	10:cc	_
7	so	so	ADV	RB	_	8	advmod	8:advmod	_
8	many	many	ADJ	JJ	Degree=Pos	10	nsubj	10:nsubj	_
9	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	10	cop	10:cop	_
10	unable	unable	ADJ	JJ	Degree=Pos	2	conj	2:conj:but	_
11	to	to	PART	TO	_	10	xcomp	10:xcomp	SpaceAfter=No
12	.	.	PUNCT	.	_	2	punct	2:punct	_
