This year's theme was water security.
1	This	this	DET	DT	Number=Sing|PronType=Dem	2	det	2:det	Discourse=elaboration-additional:22->3:3|Entity=(44-abstract-new-cf1-4-coref(8-time-giv:inact-cf2-2-coref|XML=<date when:::"2017">
2-3	year's	_	_	_	_	_	_	_	_
2	year	year	NOUN	NN	Number=Sing	4	nmod:poss	4:nmod:poss	XML=</date>
3	's	's	PART	POS	_	2	case	2:case	Entity=8)
4	theme	theme	NOUN	NN	Number=Sing	7	nsubj	7:nsubj	Entity=44)
5	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	7	cop	7:cop	_
6	water	water	NOUN	NN	Number=Sing	7	compound	7:compound	Entity=(44-abstract-giv:act-cf1-2-pred(45-substance-new-cf3-1-coref)|XML=<ref target:::"https://en.wikipedia.org/wiki/water%20security">
7	security	security	NOUN	NN	Number=Sing	0	root	0:root	Entity=44)|SpaceAfter=No|XML=</ref>
8	.	.	PUNCT	.	_	7	punct	7:punct	_
