Direction: Study the following information carefully to answer the given questions:

There are eight members I, J, K, L, M, N, O and P in the family. There are three generations in the family. No single person has a child. M is father of K, who is mother of P. J is the father of O, who has only one sister. Number of persons in 1^st and 3^rd generation are same. N is the sister of I, who is married. Neither K nor J has a sibling. Gender of P and J is same. Gender of O and L is same.