Egypt did not use poison gas against Yemen in the 60's because of Israel.
1	Egypt	Egypt	PROPN	NNP	Number=Sing	4	nsubj	4:nsubj	_
2	did	do	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	4	aux	4:aux	_
3	not	not	PART	RB	_	4	advmod	4:advmod	_
4	use	use	VERB	VB	VerbForm=Inf	0	root	0:root	_
5	poison	poison	ADJ	JJ	Degree=Pos	6	amod	6:amod	_
6	gas	gas	NOUN	NN	Number=Sing	4	obj	4:obj	_
7	against	against	ADP	IN	_	8	case	8:case	_
8	Yemen	Yemen	PROPN	NNP	Number=Sing	4	obl	4:obl:against	_
9	in	in	ADP	IN	_	11	case	11:case	_
10	the	the	DET	DT	Definite=Def|PronType=Art	11	det	11:det	_
11	60's	60	NOUN	NNS	Number=Plur	4	obl	4:obl:in	_
12	because	because	ADP	IN	_	14	case	14:case	_
13	of	of	ADP	IN	_	12	fixed	12:fixed	_
14	Israel	Israel	PROPN	NNP	Number=Sing	4	obl	4:obl:because_of	SpaceAfter=No
15	.	.	PUNCT	.	_	4	punct	4:punct	_
