Direction: Read the given information carefully and answer the following question.

Eight family members M, N, O, P, Q, R, S, and T in a family are related to each other in the following way. P is the mother of M. M has only one daughter. T is the father of R. T is the son-in-law of O. O is the father of N. N is the husband of S. Q is the sister of R. P has two children. 
How is P related to Q?