First come, first serve.
1	First	first	ADV	RB	NumType=Ord	2	advmod	2:advmod	_
2	come	come	VERB	VB	VerbForm=Inf	0	root	0:root	SpaceAfter=No
3	,	,	PUNCT	,	_	2	punct	2:punct	_
4	first	first	ADV	RB	NumType=Ord	5	advmod	5:advmod	_
5	serve	serve	VERB	VB	VerbForm=Inf	2	parataxis	2:parataxis	SpaceAfter=No
6	.	.	PUNCT	.	_	2	punct	2:punct	_
