When there is A and B, it supposed to be AB When there is A and B, it supposed to be right together When A is no B, and B is no A, but AB is just right But there are no U and I When there is A or B, it was not supposed to be AB When A is no B, and B is no A, but AB is just right When A is only A, or B is only B, AB is not right But there is U and there is I When there is A and B, it can be AB When there is A only, or B only, it could be AB But[…]