In a coded relation, if P * Q means P is the mother of Q, P + Q means P is the father of Q, and P - Q means P is the sister of Q, what is the relationship of R if P * R + Q?

A. R IS THE DAUGHTER OF Q

If P - Q means P is the sister of Q, Q + R means Q is the mother of R, and R * S means R is the son of S, what is the relationship of P to S?

B. AUNT

If D is the daughter of E, and E is the sister of F, what is the relationship of D to F?

A. NIECE

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

A. SISTER

If X * Y means X is the mother of Y, and Y ÷ Z means Y is the father of Z, what is the relationship between X and Z?

A. GRANDMOTHER