If M * N means M is the father of N, M + O means M is the brother of O, and O - P means O is the sister of P, what is the relationship of P to N if M * N + O - P means M is the father of N, M is the brother of O, and O is the sister of P?
If A * B means A is the father of B, A + C means A is the brother of C, and C - D means C is the sister of D, what is the relationship of D to B if A * B + C - D means A is the father of B, A is the brother of C, and C is the sister of D?