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.
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Question: Context : NGC 6886 is a planetary nebula in the constellation Sagitta. 
Answer : Sagitta

Answer: In which constellation is NGC 6886?


Question: Context : ``The Next Witness'' is a Nero Wolfe mystery novella by Rex Stout, first published as ``The Last Witness'' in the May 1955 issue of The American Magazine. 
Answer : Nero Wolfe

Answer: The The Next Witness has what character?


Question: Context : Günther Seibicke (30 August 1911 -- 26 May 1943) was a German U-boat commander in World War II and recipient of the Knight's Cross of the Iron Cross. 
Answer : World War II

Answer:
Which historic war did Günther Seibicke participate?