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.

Input: Consider Input: Context : Gelnhausen railway (Hungen--Gießen) was opened on 29 December 1869 and Hungen station went into operation. 
Answer : 29 December 1869

Output: When was Hungen station opened?


Input: Consider 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

Output: The date of 1957 Nutts Corner BEA Viscount crash?


Input: Consider Input: Context : Rugby 08 was released prior to the 2007 World Cup in France. 
Answer : France


Output: Which place does Rugby 08 exist in?