As many persons sit between O and L as between I and _____?

Study the following information carefully and answer the questions given below. Eight persons- I, J, K, L, M, N, O and P are sitting in a linear row facing the north but not necessarily in the same order. N sits fifth to the right of J. Only two persons sit between N and
M. The number of persons sitting to the right of M is one less than the number of persons sitting to the left of K. Only one person sits between K and P. L sits third to the left of P. Only three persons sit between I and O, who doesn’t sit at the end of the row.