Where they came from.
1	Where	where	ADV	WRB	PronType=Rel	0	root	0:root	Discourse=explanation-evidence:14->6:2
2	they	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	3:nsubj	Entity=(5-object-giv:inact-cf1-1-ana)
3	came	come	VERB	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	1	advcl:relcl	1:advcl:relcl	_
4	from	from	ADP	IN	_	3	obl	3:obl	SpaceAfter=No
5	.	.	PUNCT	.	_	1	punct	1:punct	_
