How many persons sit to the right of X?

Study the following information carefully and answer the questions given below. Twelve persons are sitting in two parallel rows. The persons in row 1 - P, R, T, V, X, and Z are facing towards south and the persons in row 2 - Q, S, U, W, Y, and A are facing towards north, but not necessarily in the same order. The person, who faces R, sits third to the right of Q. Only one person sits between Q and W. V sits second to the right of P, where neither of them faces Q nor sits on the extreme ends of the row. S sits on the extreme end of the row but doesn’t face R. Only one person sits between A and U, who neither sits adjacent to S nor Q. Z sits to the right of X but neither faces S and A nor sits on the extreme ends of the row.