Answer the questions based on the information given below. There are seven persons- L, M, N, O, P, Q, and R, in a family, which consist of three generations and two married couples. No single member in the family is a parent. R is the only brother of
M. L is mother of Q. P is maternal uncle of O. M is father-in-law of N. N doesn't have sibling   How is O related to N?