In response to the aforementioned situation where the three types of lights are compared by their efficiency and effectiveness as light sources, the proponents conducted this study.
1	In	in	ADP	IN	_	2	case	2:case	Discourse=causal-result:93->52:3
2	response	response	NOUN	NN	Number=Sing	26	obl	26:obl:in	_
3	to	to	ADP	IN	_	6	case	6:case	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	Entity=(104-event-giv:inact-cf4-3-coref
5	aforementioned	aforementioned	ADJ	JJ	Degree=Pos	6	amod	6:amod	_
6	situation	situation	NOUN	NN	Number=Sing	2	nmod	2:nmod:to	_
7	where	where	ADV	WRB	PronType=Rel	14	advmod	14:advmod	Discourse=elaboration-attribute:94->93:0
8	the	the	DET	DT	Definite=Def|PronType=Art	10	det	10:det	Entity=(95-object-giv:inact-cf1-3-coref
9	three	three	NUM	CD	NumForm=Word|NumType=Card	10	nummod	10:nummod	_
10	types	type	NOUN	NNS	Number=Plur	14	nsubj:pass	14:nsubj:pass	_
11	of	of	ADP	IN	_	12	case	12:case	_
12	lights	light	NOUN	NNS	Number=Plur	10	nmod	10:nmod:of	Entity=95)
13	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	14	aux:pass	14:aux:pass	_
14	compared	compare	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	6	acl:relcl	6:acl:relcl	_
15	by	by	ADP	IN	_	17	case	17:case	_
16	their	their	PRON	PRP$	Case=Gen|Number=Plur|Person=3|Poss=Yes|PronType=Prs	17	nmod:poss	17:nmod:poss	Entity=(135-abstract-new-cf7-2,4-sgl(107-abstract-giv:inact-cf5-2-coref(95-object-giv:act-cf1-1-ana)
17	efficiency	efficiency	NOUN	NN	Number=Sing	14	obl:agent	14:obl:agent	Entity=107)
18	and	and	CCONJ	CC	_	19	cc	19:cc	_
19	effectiveness	effectiveness	NOUN	NN	Number=Sing	17	conj	14:obl:agent|17:conj:and	Entity=(136-abstract-new-cf8-4-sgl
20	as	as	ADP	IN	_	22	case	22:case	_
21	light	light	ADJ	JJ	Degree=Pos	22	amod	22:amod	Entity=(122-abstract-giv:inact-cf6-1-coref)
22	sources	source	NOUN	NNS	Number=Plur	17	nmod	17:nmod:as	Entity=136)135)104)|SpaceAfter=No
23	,	,	PUNCT	,	_	2	punct	2:punct	_
24	the	the	DET	DT	Definite=Def|PronType=Art	25	det	25:det	Discourse=same-unit_m:95->93:1|Entity=(5-person-giv:inact-cf2-2-coref
25	proponents	proponent	NOUN	NNS	Number=Plur	26	nsubj	26:nsubj	Entity=5)
26	conducted	conduct	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	0	root	0:root	_
27	this	this	DET	DT	Number=Sing|PronType=Dem	28	det	28:det	Entity=(39-abstract-giv:inact-cf3-2-coref
28	study	study	NOUN	NN	Number=Sing	26	obj	26:obj	Entity=39)|SpaceAfter=No
29	.	.	PUNCT	.	_	26	punct	26:punct	_
