Question

'A + B' means 'A is the sister of B'. 'A - B' means 'A is the brother of B'. 'A X B' means 'A is the father of B'. 'A ÷ B' means 'A is the wife of B'. if R + S - T ÷ U X V - W, then which of the following statements is NOT correct?

A T is the mother of W.
B V is the brother of S.
C R is the sister of the wife of U.
D R is the sister of T.
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