P$Q' means 'P is the son of Q.
P @ Q' means 'P is the brother of Q'.
P % Q' means 'P is the father of Q'.
P & Q' means 'P is the mother of Q'.
P x Q' means 'P is the wife of Q'.
Which of the following statements is correct regarding the given expression? M x O $ N @ Q % R # S
