Instead of n items, you can also choose to filter for a certain percentage of items.
1	Instead	instead	ADV	_	_	4	case	_	_
2	of	of	ADP	_	_	1	fixed	_	_
3	n	n	NUM	CARD-PL	Case=Nom	4	nummod	_	_
4	items	item	NOUN	PL-NOM	Number=Plur	9	obl	_	SpaceAfter=No
5	,	,	PUNCT	Comma	_	4	punct	_	_
6	you	you	PRON	PERS-P2	_	9	nsubj	_	_
7	can	can	AUX	PRES-AUX	VerbForm=Fin	9	aux	_	_
8	also	also	ADV	_	_	9	advmod	_	_
9	choose	choose	VERB	INF	VerbForm=Inf	0	root	_	_
10	to	to	PART	_	_	11	mark	_	_
11	filter	filter	VERB	INF	Case=Nom	9	xcomp	_	_
12	for	for	ADP	_	_	15	case	_	_
13	a	a	DET	IND-SG	Definite=Ind|PronType=Art	15	det	_	_
14	certain	certain	ADJ	POS	Degree=Pos	15	amod	_	_
15	percentage	percentage	NOUN	SG-NOM	Number=Sing	11	obl	_	_
16	of	of	ADP	_	_	17	case	_	_
17	items	item	NOUN	PL-NOM	Number=Plur	15	nmod	_	SpaceAfter=No
18	.	.	PUNCT	Period	_	9	punct	_	_
