Controls on forms and reports need not have unique names, but names of controls on a page must be unique.
1	Controls	control	NOUN	PL-NOM	Number=Plur	6	nsubj	_	_
2	on	on	ADP	_	_	3	case	_	_
3	forms	form	NOUN	PL-NOM	Number=Plur	1	nmod	_	_
4	and	and	CCONJ	_	_	5	cc	_	_
5	reports	report	NOUN	PL-NOM	Number=Plur	3	conj	_	_
6	need	need	VERB	PRES	Mood=Ind|Tense=Pres|VerbForm=Fin	0	root	_	_
7	not	not	PART	NEG	_	6	advmod	_	_
8	have	have	VERB	INF	VerbForm=Inf	6	xcomp	_	_
9	unique	unique	ADJ	POS	Degree=Pos	10	amod	_	_
10	names	name	NOUN	PL-NOM	Number=Plur	8	obj	_	SpaceAfter=No
11	,	,	PUNCT	Comma	_	21	punct	_	_
12	but	but	CCONJ	_	_	21	cc	_	_
13	names	name	NOUN	PL-NOM	Number=Plur	21	nsubj	_	_
14	of	of	ADP	_	_	15	case	_	_
15	controls	control	NOUN	PL-NOM	Number=Plur	13	nmod	_	_
16	on	on	ADP	_	_	18	case	_	_
17	a	a	DET	IND-SG	Definite=Ind|PronType=Art	18	det	_	_
18	page	page	NOUN	SG-NOM	Number=Sing	15	nmod	_	_
19	must	must	AUX	PRES-AUX	VerbForm=Fin	21	aux	_	_
20	be	be	AUX	INF	VerbForm=Inf	21	cop	_	_
21	unique	unique	ADJ	POS	Degree=Pos	10	conj	_	SpaceAfter=No
22	.	.	PUNCT	Period	_	6	punct	_	_
