Vote 4 !
Upvote for the excellent idea, though I presume that by "Belfast" (a City) you actually mean "Northern Ireland" (A Country / Province / Set of Six Counties according to sectarian preference)?
Even 'Ulster' is not quite correct, as Ulster includes counties in Eire. . . .
I hope this can be put into effect immediately, without any further plebiscite being required?
Please. . . .