Read the following information carefully and answer the question given below:

'A + B' means 'A is the father of B'

'A - B' means 'A is the husband of B'

'A × B' means 'A is the daughter of B'

'A ÷ B' means 'A is the sister of B'

If P + M ÷ Q × N × T - U, then how is P related to N?