They just are there as an adaptation.
1	They	they	PRON	PRP	Case=Nom|Number=Plur|Person=3|PronType=Prs	3	nsubj	3:nsubj	_
2	just	just	ADV	RB	_	3	advmod	3:advmod	_
3	are	be	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
4	there	there	ADV	RB	PronType=Dem	3	advmod	3:advmod	_
5	as	as	ADP	IN	_	7	case	7:case	_
6	an	a	DET	DT	Definite=Ind|PronType=Art	7	det	7:det	_
7	adaptation	adaptation	NOUN	NN	Number=Sing	3	obl	3:obl:as	SpaceAfter=No
8	.	.	PUNCT	.	_	3	punct	3:punct	_
