There are equal number of males and females in a family. Family members are A, B, C, D, E, F, G & H. There are also three married couples in the family and two of them are children. F is the sister-in-law of G. G is the daughter of B. A is the son of H and brother of G. F is the mother of C. C is the niece of G. D is the brother-in-law of A. A is the father of E. H is the grandfather of E.