Answer the following question based on the direction given below. If 'A@B' means 'A is the mother of B' 'A#B' means 'A is the son of B' 'A$B' means 'A is the sister of B' 'A&B' means 'A is the husband of B' If 'R # X & Q @ S, P $ X', then how is S related to P?