D is the mother of E. F is the brother of D. How is F related to E?

A. UNCLE

If G is the uncle of H, and H is the son of I, what is the relationship of G to I?

B. BROTHER-IN-LAW

If J is the grandmother of K, and K is the son of L, what is the relationship of J to L?

A. MOTHER

K is the daughter of L. M is the son of L. N is the sister of M. How is N related to K?

A. SISTER

If P - Q means P is the daughter of Q, P + R means P is the sister of R, and Q × R means Q is the mother of R, what is the relationship of R to Q?

B. R IS Q'S DAUGHTER