She may be the reason for all the change.
1	She	she	PRON	PRP	Case=Nom|Gender=Fem|Number=Sing|Person=3|PronType=Prs	5	nsubj	5:nsubj	_
2	may	may	AUX	MD	VerbForm=Fin	5	aux	5:aux	_
3	be	be	AUX	VB	VerbForm=Inf	5	cop	5:cop	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	5:det	_
5	reason	reason	NOUN	NN	Number=Sing	0	root	0:root	_
6	for	for	ADP	IN	_	9	case	9:case	_
7	all	all	DET	PDT	_	9	det:predet	9:det:predet	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	9:det	_
9	change	change	NOUN	NN	Number=Sing	5	nmod	5:nmod:for	SpaceAfter=No
10	.	.	PUNCT	.	_	5	punct	5:punct	_
