How is P related to S?

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Question

Answer the questions based on the information given below. There are eight members P, Q, R, S, T, U, V and W in a family of three generations. U is the only daughter of V. P is the sibling of U. U has only one child. W is the daughter-in-law of P. T is the nephew of S and grandson of V. S is not a sibling of P. R is the mother-in-law of S. Q is the granddaughter of R.