Answer the questions based on the information given below. In a family of three generations, there are seven persons L, M, N, O, P, Q and R. O is the daughter of
L. Q is the sister of
L. Q is a married member. P is the sister-in-law of Q. N is the father of
M. Neither N nor M has a sibling. R is the son of M, who is not married to Q. If the gender of P and M is same, then, how many male members are there in the family?