Light always follows the shortest path—but that path may not always be straight.
1	Light	light	NOUN	NN	Number=Sing	3	nsubj	3:nsubj	Discourse=adversative-concession:15->16:0|Entity=(22-abstract-giv:act-cf2*-1-coref)
2	always	always	ADV	RB	_	3	advmod	3:advmod	Entity=(39-abstract-new-cf3-2,14-disc
3	follows	follow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	6:det	Entity=(40-abstract-new-cf1-3-coref
5	shortest	short	ADJ	JJS	Degree=Sup	6	amod	6:amod	_
6	path	path	NOUN	NN	Number=Sing	3	obj	3:obj	Entity=40)|SpaceAfter=No|XML=<w>
7	—	—	PUNCT	:	_	15	punct	15:punct	Discourse=elaboration-additional:16->11:2|SpaceAfter=No
8	but	but	CCONJ	CC	_	15	cc	15:cc	XML=</w>
9	that	that	DET	DT	Number=Sing|PronType=Dem	10	det	10:det	Entity=(40-abstract-giv:act-cf1-2-coref
10	path	path	NOUN	NN	Number=Sing	15	nsubj	15:nsubj	Entity=40)
11	may	may	AUX	MD	VerbForm=Fin	15	aux	15:aux	_
12	not	not	PART	RB	Polarity=Neg	15	advmod	15:advmod	_
13	always	always	ADV	RB	_	15	advmod	15:advmod	_
14	be	be	AUX	VB	VerbForm=Inf	15	cop	15:cop	_
15	straight	straight	ADJ	JJ	Degree=Pos	3	conj	3:conj:but	Entity=39)|SpaceAfter=No
16	.	.	PUNCT	.	_	3	punct	3:punct	_
