Answer the questions based on the information given below. There are nine members J, K, L, M, N, O, P, Q, and R in a family, which consists of three generations and three married couples. J is the maternal grandmother of Q. N does not have any siblings and is the sister-in-law of
M. O is the son-in-law of K, who has only two children. K does not belong to the second generation. P is the only nephew of
M. R is the unmarried sister of Q. M is the only sister of
L. Q is a female member of the family. How is L related to R?