P x Q means P is the sister of Q ;
P + Q means P is the father of Q ;
P - Q means P is the mother of Q.
Which of the following means S is the aunt of T ?
X - Z means X is the mother of Z ;
X x Z means X is the father of Z and
X + Z means X is the daughter of Z.
Now, if M - N x T + Q, than which of the following is not true ?
A + B means A is the father of B ;
A - B means A is the wife of B ;
A x B means A is the brother of B ;
A ÷ B means A is the daughter of B.