Find the relation between A and B: A+C*D-B
X + Y means X is the mother of Y.
X - Y means X is the sister of Y.
X * Y means X is the father of Y.
X & Y means X is the brother of Y.
A is mother of C.
C is father of D
i.e A is Grandmother of D.
Now D is sister of B.
Therefore A is Grand mother of B also.
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