This simple change has triggered a veritable ecological cascade in Yellowstone.
1	This	this	DET	DT	Number=Sing|PronType=Dem	3	det	3:det	_
2	simple	simple	ADJ	JJ	Degree=Pos	3	amod	3:amod	_
3	change	change	NOUN	NN	Number=Sing	5	nsubj	5:nsubj	_
4	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	5	aux	5:aux	_
5	triggered	trigger	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
6	a	a	DET	DT	Definite=Ind|PronType=Art	9	det	9:det	_
7	veritable	veritable	ADJ	JJ	Degree=Pos	9	amod	9:amod	_
8	ecological	ecological	ADJ	JJ	Degree=Pos	9	amod	9:amod	_
9	cascade	cascade	NOUN	NN	Number=Sing	5	obj	5:obj	_
10	in	in	ADP	IN	_	11	case	11:case	_
11	Yellowstone	Yellowstone	PROPN	NNP	Number=Sing	5	obl	5:obl:in	SpaceAfter=No
12	.	.	PUNCT	.	_	5	punct	5:punct	_
