If A ÷ B means A is the son of B, A * B means A is the daughter of B, and A + B means A is the cousin of B, what is the relationship of C if A ÷ C * B?
If A + B means A is the brother of B, A - B means A is the sister of B, and A × B means A is the father of B, what is the relationship of C to D if C + D and D - C are true?