Infected ants chose food laced with toxic hydrogen peroxide, whereas healthy ants avoided it.
1	Infected	infect	VERB	VBN	Tense=Past|VerbForm=Part	2	amod	2:amod	Discourse=elaboration-additional:24->10:3|Entity=(32-animal-giv:act-cf2*-2-coref
2	ants	ant	NOUN	NNS	Number=Plur	3	nsubj	3:nsubj	Entity=32)
3	chose	choose	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
4	food	food	NOUN	NN	Number=Sing	3	obj	3:obj	Entity=(34-substance-new-cf1-1-coref
5	laced	lace	VERB	VBN	Tense=Past|VerbForm=Part	4	acl	4:acl	Discourse=elaboration-attribute:25->24:0
6	with	with	ADP	IN	_	9	case	9:case	_
7	toxic	toxic	ADJ	JJ	Degree=Pos	9	amod	9:amod	Entity=(35-substance-new-cf4-3-coref
8	hydrogen	hydrogen	NOUN	NN	Number=Sing	9	compound	9:compound	XML=<ref>
9	peroxide	peroxide	NOUN	NN	Number=Sing	5	obl	5:obl:with	Entity=35)34)|SpaceAfter=No|XML=</ref>
10	,	,	PUNCT	,	_	14	punct	14:punct	_
11	whereas	whereas	SCONJ	IN	_	14	mark	14:mark	Discourse=adversative-contrast_m:26->24:1
12	healthy	healthy	ADJ	JJ	Degree=Pos	13	amod	13:amod	Entity=(36-animal-new-cf3-2-sgl
13	ants	ant	NOUN	NNS	Number=Plur	14	nsubj	14:nsubj	Entity=36)
14	avoided	avoid	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	3	advcl	3:advcl:whereas	_
15	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	14	obj	14:obj	Entity=(34-substance-giv:act-cf1-1-ana)|SpaceAfter=No
16	.	.	PUNCT	.	_	3	punct	3:punct	_
