Eight girls, K, L, M, N, O, P, Q and R, are sitting in two lines, with four girls in each line. Both the lines are facing the same direction. One line is behind the other line. K is at a corner and to the immediate left of P. O is to the immediate left of M. Two persons are sitting between K and R. L is just behind P. O is between L and M. N is not in the front line. Who is sitting between P and R?