Answer the questions based on the information given below. There are seven members (L, M, N, O, P, Q and

• R in a family, which consists of three generations. No single person in the family is a parent. L, who is brother of O, is grandfather of P. There are only two male members in the family. R is daughter of M, who is not nephew of O. N has only one son. R is not in the second generation. How is O's sister-in-law related to M's daughter?