Yellowstone has a vast elk herd, one of the largest in the world.
1	Yellowstone	Yellowstone	PROPN	NNP	Number=Sing	2	nsubj	2:nsubj	_
2	has	have	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	6:det	_
4	vast	vast	ADJ	JJ	Degree=Pos	6	amod	6:amod	_
5	elk	elk	NOUN	NN	Number=Sing	6	compound	6:compound	_
6	herd	herd	NOUN	NN	Number=Sing	2	obj	2:obj	SpaceAfter=No
7	,	,	PUNCT	,	_	6	punct	6:punct	_
8	one	one	NUM	CD	NumForm=Word|NumType=Card	6	appos	6:appos	_
9	of	of	ADP	IN	_	11	case	11:case	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	_
11	largest	large	ADJ	JJS	Degree=Sup	8	nmod	8:nmod:of	_
12	in	in	ADP	IN	_	14	case	14:case	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	14:det	_
14	world	world	NOUN	NN	Number=Sing	11	obl	11:obl:in	SpaceAfter=No
15	.	.	PUNCT	.	_	2	punct	2:punct	_
