In a certain code language: 'A + B' means 'A is the daughter of B', 'A - B' means 'A is the brother of B', 'A × B' means 'A is the wife of B', and 'A ÷ B' means 'A is the father of B'. Based on the above, how is P related to T if 'P × Q - R ÷ S + T'?

M is the brother of N, O is the father of M, P is the brother of Q, and Q is the daughter of N. How is M related to Q?

If 'P + Q' means 'P is the father of Q', 'P × Q' means 'P is the brother of Q', and 'P - Q' means 'P is the mother of Q', then which of the following is true about the expression A × B - C + D?