Question

Answer the questions based on the information given below. There are seven persons P, Q, R, S, T, U and V in a family of three generations. There are only two married couples. There is no single parent in the family. P is the father-in-law of Q. T is the sister of S, who is unmarried. V is the grandmother of R, who is the nephew of S. U is the daughter of Q. The gender of Q and S is same.