If P ÷ Q means P is the father of Q, and Q - R means Q is the sister of R, what is the relationship between P and R?

B. UNCLE

If M + N means M is the sister of N, and N * O means N is the mother of O, what is the relationship between M and O?

B. AUNT

If J - K means J is the daughter of K, and K + L means K is the brother of L, what is the relationship between J and L?

A. COUSIN

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

B. BROTHER-IN-LAW

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

A. NEPHEW