Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Q: Context : Mainova AG was formed in 1998 through the merger of Stadtwerke Frankfurt am Main GmbH and Maingas AG.
Answer : Stadtwerke Frankfurt

A: What is Mainova's parent company?
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Q: Context : In 1921, Else Sehrig-Vehling was one of the very first female art students of the Arts Academy of the city of Dusseldorf.
Answer : female

A: What is the sex or gender of Else Sehrig-Vehling?
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Q: Context : NGC 61 is a pair of lenticular galaxies, NGC 61-A (or NGC 61-1) and NGC 61-B (or NGC 61-2) in the constellation Cetus.
Answer : Cetus

A:
In what constellation can NGC 61 be found?
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