Senator Patrick Leahy at a Congressional hearing in the Spring of 2002 noted that the FBI had collected the Ames strain from 20 sources.
1	Senator	Senator	PROPN	NNP	Number=Sing	13	nsubj	13:nsubj	_
2	Patrick	Patrick	PROPN	NNP	Number=Sing	1	flat	1:flat	_
3	Leahy	Leahy	PROPN	NNP	Number=Sing	1	flat	1:flat	_
4	at	at	ADP	IN	_	7	case	7:case	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	7	det	7:det	_
6	Congressional	congressional	ADJ	JJ	Degree=Pos	7	amod	7:amod	_
7	hearing	hearing	NOUN	NN	Number=Sing	13	obl	13:obl:at	_
8	in	in	ADP	IN	_	10	case	10:case	_
9	the	the	DET	DT	Definite=Def|PronType=Art	10	det	10:det	_
10	Spring	spring	NOUN	NN	Number=Sing	7	nmod	7:nmod:in	_
11	of	of	ADP	IN	_	12	case	12:case	_
12	2002	2002	NUM	CD	NumForm=Digit|NumType=Card	10	nmod	10:nmod:of	_
13	noted	note	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
14	that	that	SCONJ	IN	_	18	mark	18:mark	_
15	the	the	DET	DT	Definite=Def|PronType=Art	16	det	16:det	_
16	FBI	FBI	PROPN	NNP	Number=Sing	18	nsubj	18:nsubj	_
17	had	have	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	18	aux	18:aux	_
18	collected	collect	VERB	VBN	Tense=Past|VerbForm=Part	13	ccomp	13:ccomp	_
19	the	the	DET	DT	Definite=Def|PronType=Art	21	det	21:det	_
20	Ames	Ames	PROPN	NNP	Number=Sing	21	compound	21:compound	_
21	strain	strain	NOUN	NN	Number=Sing	18	obj	18:obj	_
22	from	from	ADP	IN	_	24	case	24:case	_
23	20	20	NUM	CD	NumForm=Digit|NumType=Card	24	nummod	24:nummod	_
24	sources	source	NOUN	NNS	Number=Plur	18	obl	18:obl:from	SpaceAfter=No
25	.	.	PUNCT	.	_	13	punct	13:punct	_
