They estimated by 2050, increasing population and changing diet would increase world food needs by 50 percent.
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	2	nsubj	2:nsubj	Discourse=attribution-positive:10->11:0|Entity=(2-person-giv:inact-cf1-1-ana)
2	estimated	estimate	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	by	by	ADP	IN	_	4	case	4:case	Discourse=joint-other_m:11->6:3
4	2050	2050	NUM	CD	NumForm=Digit|NumType=Card	2	obl	2:obl:by	Entity=(42-time-new-cf7-1-sgl)|SpaceAfter=No|XML=<date when:::"2050"></date>
5	,	,	PUNCT	,	_	12	punct	12:punct	_
6	increasing	increase	VERB	VBG	VerbForm=Ger	7	amod	7:amod	Entity=(43-event-new-cf3-2-sgl
7	population	population	NOUN	NN	Number=Sing	12	nsubj	12:nsubj	Entity=43)|XML=<ref></ref>
8	and	and	CCONJ	CC	_	10	cc	10:cc	_
9	changing	change	VERB	VBG	VerbForm=Ger	10	amod	10:amod	Entity=(44-event-new-cf5-2-sgl
10	diet	diet	NOUN	NN	Number=Sing	7	conj	7:conj:and|12:nsubj	Entity=44)|XML=<ref></ref>
11	would	would	AUX	MD	Number=Sing|Person=3|VerbForm=Fin	12	aux	12:aux	_
12	increase	increase	VERB	VB	VerbForm=Inf	2	ccomp	2:ccomp	_
13	world	world	NOUN	NN	Number=Sing	15	compound	15:compound	Entity=(45-abstract-new-cf4-3-sgl
14	food	food	NOUN	NN	Number=Sing	15	compound	15:compound	Entity=(37-substance-giv:inact-cf2-1-coref)
15	needs	need	NOUN	NNS	Number=Plur	12	obj	12:obj	Entity=45)
16	by	by	ADP	IN	_	18	case	18:case	_
17	50	50	NUM	CD	NumForm=Digit|NumType=Card	18	nummod	18:nummod	Entity=(46-abstract-new-cf6-2-sgl
18	percent	percent	NOUN	NN	Number=Sing	12	obl	12:obl:by	Entity=46)|SpaceAfter=No
19	.	.	PUNCT	.	_	2	punct	2:punct	_
