Princeton islamist scholar Bernard Lewis has explained that while islamists may disagree about whether killing innocents is sanctioned by the laws of jihad, extremists like Zawahiri agree that notice must be given before biochemical weapons are used.
1	Princeton	Princeton	PROPN	NNP	Number=Sing	3	compound	3:compound	_
2	islamist	Islamist	NOUN	NN	Number=Sing	3	compound	3:compound	_
3	scholar	scholar	NOUN	NN	Number=Sing	4	compound	4:compound	_
4	Bernard	Bernard	PROPN	NNP	Number=Sing	7	nsubj	7:nsubj	_
5	Lewis	Lewis	PROPN	NNP	Number=Sing	4	flat	4:flat	_
6	has	have	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	7	aux	7:aux	_
7	explained	explain	VERB	VBN	Tense=Past|VerbForm=Part	0	root	0:root	_
8	that	that	SCONJ	IN	_	28	mark	28:mark	_
9	while	while	SCONJ	IN	_	12	mark	12:mark	_
10	islamists	Islamist	NOUN	NNS	Number=Plur	12	nsubj	12:nsubj	_
11	may	may	AUX	MD	VerbForm=Fin	12	aux	12:aux	_
12	disagree	disagree	VERB	VB	VerbForm=Inf	28	advcl	28:advcl:while	_
13	about	about	SCONJ	IN	_	18	mark	18:mark	_
14	whether	whether	SCONJ	IN	_	18	mark	18:mark	_
15	killing	kill	VERB	VBG	VerbForm=Ger	18	csubj:pass	18:csubj:pass	_
16	innocents	innocent	NOUN	NNS	Number=Plur	15	obj	15:obj	_
17	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	18	aux:pass	18:aux:pass	_
18	sanctioned	sanction	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	12	advcl	12:advcl:whether	_
19	by	by	ADP	IN	_	21	case	21:case	_
20	the	the	DET	DT	Definite=Def|PronType=Art	21	det	21:det	_
21	laws	law	NOUN	NNS	Number=Plur	18	obl	18:obl:by	_
22	of	of	ADP	IN	_	23	case	23:case	_
23	jihad	jihad	NOUN	NN	Number=Sing	21	nmod	21:nmod:of	SpaceAfter=No
24	,	,	PUNCT	,	_	28	punct	28:punct	_
25	extremists	extremist	NOUN	NNS	Number=Plur	28	nsubj	28:nsubj	_
26	like	like	ADP	IN	_	27	case	27:case	_
27	Zawahiri	Zawahiri	PROPN	NNP	Number=Sing	25	nmod	25:nmod:like	_
28	agree	agree	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	ccomp	7:ccomp	_
29	that	that	SCONJ	IN	_	33	mark	33:mark	_
30	notice	notice	NOUN	NN	Number=Sing	33	nsubj:pass	33:nsubj:pass	_
31	must	must	AUX	MD	VerbForm=Fin	33	aux	33:aux	_
32	be	be	AUX	VB	VerbForm=Inf	33	aux:pass	33:aux:pass	_
33	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	28	ccomp	28:ccomp	_
34	before	before	SCONJ	IN	_	38	mark	38:mark	_
35	biochemical	biochemical	ADJ	JJ	Degree=Pos	36	amod	36:amod	_
36	weapons	weapon	NOUN	NNS	Number=Plur	38	nsubj:pass	38:nsubj:pass	_
37	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	38	aux:pass	38:aux:pass	_
38	used	use	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	33	advcl	33:advcl:before	SpaceAfter=No
39	.	.	PUNCT	.	_	7	punct	7:punct	_
