Your visa should say whether or not you are restricted to work in a specific sector.
1	Your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	2	nmod:poss	2:nmod:poss	_
2	visa	visa	NOUN	NN	Number=Sing	4	nsubj	4:nsubj	_
3	should	should	AUX	MD	VerbForm=Fin	4	aux	4:aux	_
4	say	say	VERB	VB	VerbForm=Inf	0	root	0:root	_
5	whether	whether	SCONJ	IN	_	10	mark	10:mark	_
6	or	or	CCONJ	CC	_	5	fixed	5:fixed	_
7	not	not	PART	RB	_	5	fixed	5:fixed	_
8	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	10	nsubj:pass	10:nsubj:pass|12:nsubj:xsubj	_
9	are	be	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	10	aux:pass	10:aux:pass	_
10	restricted	restrict	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	4	ccomp	4:ccomp	_
11	to	to	PART	TO	_	12	mark	12:mark	_
12	work	work	VERB	VB	VerbForm=Inf	10	xcomp	10:xcomp	_
13	in	in	ADP	IN	_	16	case	16:case	_
14	a	a	DET	DT	Definite=Ind|PronType=Art	16	det	16:det	_
15	specific	specific	ADJ	JJ	Degree=Pos	16	amod	16:amod	_
16	sector	sector	NOUN	NN	Number=Sing	12	obl	12:obl:in	SpaceAfter=No
17	.	.	PUNCT	.	_	4	punct	4:punct	_
