Task: Question Generation
Input (English): 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
Output (English): The date of 1957 Nutts Corner BEA Viscount crash?