If X * Y means X is the sister of Y, X + Y means X is the father of Y, and X - Y means X is the brother of Y, what is the relationship between Z and Y if Z * X - Y?
In a coded relation, if A + B means A is the father of B, A - B means A is the mother of B, and A × B means A is the son of B, what is the relationship between C and D if C - D + E?
If M × N means M is the daughter of N, M + N means M is the son of N, and M - N means M is the wife of N, what is the relationship between O and N if O - M + N?