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

'P & Q' means 'P is the son of Q'.

'P @ Q' means 'P is the brother of Q'.

'P % Q' means 'P is the sister of Q'.

'P $ Q' means 'P is the daughter of Q'.

'P # Q' means 'P is the father of Q'.

How is W related to Z, in the expression 'V & W # T @ X % Y $ Z' ?