How is T related to E?

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Question

Answer the questions based on the information given below: There are seven members (Y, W, T, O, N, H and E) in a family, which consists of three generations. No single person is a parent in the family. H is the only child of W, who has a sister. Y is the only daughter of T, who is married to H. N is an unmarried female. E is a female member. Y has a sibling.