One of the main factors in lighting energy consumption is the light bulb.
1	One	one	NUM	CD	NumForm=Word|NumType=Card	13	nsubj	13:nsubj	Discourse=joint-other_m:52->19:5|Entity=(88-object-new-cf1-1-coref
2	of	of	ADP	IN	_	5	case	5:case	_
3	the	the	DET	DT	Definite=Def|PronType=Art	5	det	5:det	_
4	main	main	ADJ	JJ	Degree=Pos	5	amod	5:amod	_
5	factors	factor	NOUN	NNS	Number=Plur	1	nmod	1:nmod:of	_
6	in	in	ADP	IN	_	9	case	9:case	_
7	lighting	lighting	NOUN	NN	Number=Sing	8	compound	8:compound	Entity=(89-event-new-cf3-3-sgl(90-abstract-new-cf4-2-coref(20-abstract-giv:inact-cf2-1-coref-Lighting)
8	energy	energy	NOUN	NN	Number=Sing	9	compound	9:compound	Entity=90)
9	consumption	consumption	NOUN	NN	Number=Sing	5	nmod	5:nmod:in	Entity=89)88)
10	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	13:cop	_
11	the	the	DET	DT	Definite=Def|PronType=Art	13	det	13:det	Entity=(88-object-giv:act-cf1-3-coref
12	light	light	NOUN	NN	Number=Sing	13	compound	13:compound	_
13	bulb	bulb	NOUN	NN	Number=Sing	0	root	0:root	Entity=88)|SpaceAfter=No
14	.	.	PUNCT	.	_	13	punct	13:punct	_
