There are 50 of them, 48 located from Maine to Florida and California to Washington State and all in between.
1	There	there	PRON	EX	_	2	expl	2:expl	_
2	are	be	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	50	50	NUM	CD	NumForm=Digit|NumType=Card	2	nsubj	2:nsubj	_
4	of	of	ADP	IN	_	5	case	5:case	_
5	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	3	nmod	3:nmod:of	SpaceAfter=No
6	,	,	PUNCT	,	_	3	punct	3:punct	_
7	48	48	NUM	CD	NumForm=Digit|NumType=Card	8	nsubj	8:nsubj|21:nsubj	_
8	located	locate	VERB	VBN	Tense=Past|VerbForm=Part	2	advcl	2:advcl	_
9	from	from	ADP	IN	_	10	case	10:case	_
10	Maine	Maine	PROPN	NNP	Number=Sing	8	obl	8:obl:from	_
11	to	to	ADP	IN	_	12	case	12:case	_
12	Florida	Florida	PROPN	NNP	Number=Sing	10	nmod	10:nmod:to	_
13	and	and	CCONJ	CC	_	14	cc	14:cc	_
14	California	California	PROPN	NNP	Number=Sing	10	conj	8:obl:from|10:conj:and	_
15	to	to	ADP	IN	_	17	case	17:case	_
16	Washington	Washington	PROPN	NNP	Number=Sing	17	compound	17:compound	_
17	State	State	PROPN	NNP	Number=Sing	14	nmod	14:nmod:to	_
18	and	and	CCONJ	CC	_	20	cc	20:cc	_
19	all	all	ADV	RB	_	20	advmod	20:advmod	_
20	in	in	ADP	IN	_	10	conj	8:advmod|10:conj	_
21	between	between	ADP	IN	_	20	fixed	20:fixed	SpaceAfter=No
22	.	.	PUNCT	.	_	2	punct	2:punct	_
