 If A is the sister of B, B is the sister of C, and C is the mother of D, then what relation is D to A?
 If A is the sister of B, B is the sister of C, and C is the mother of D, then D is the niece (or nephew) of A.
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<|USER|> If A is the sister of B, B is the sister of C, and C is the mother of D, then what relation is D to A?
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 If A is the sister of B, B is the sister of C, and C is the mother of D, then D is the niece (or nephew) of A.
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