In a coded relation, A × B means A is the daughter of B, A + B means A is the son of B, and A - B means A is the cousin of B. What is the relationship of C if A × C + B?
If X × Y means X is the father of Y, Y - Z means Y is the sister of Z, and Z + W means Z is the brother of W, what is the relationship of X to W in X × Y - Z + W?