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.

Example Input: Context : The 1957 Nutts Corner BEA Viscount crash was a British European Airways (BEA) flight from London to Belfast that crashed at Nutts Corner Airport on 23 October 1957, killing all seven passengers and crew. 
Answer : 23 October 1957
Example Output: The date of 1957 Nutts Corner BEA Viscount crash?

Example Input: Context : ``The Cartridge Family'' is the fifth episode of The Simpsons' ninth season, which originally aired on Fox in the United States on November 2, 1997. 
Answer : The Simpsons
Example Output: What series is the episode The Cartridge Family part of?

Example Input: Context : The Marder I was developed in May 1942 by Major Alfred Becker. 
Answer : 1942
Example Output:
What year was Marder I introduced?