P is the uncle of Q. Q is the daughter of R. R is the sister of P. How is R related to P?

A. SISTER

M is the grandmother of N. N has an uncle O. O is the son of P. How is P related to M?

A. SON

A is the sister of B. C is the brother of A. D is the father of B. How is D related to C?

A. FATHER

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

A. 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 of J to L?

C. NIECE