Task: Question Generation
Input (English): Context : Turkish Airlines Flight 1951 (also known as the Poldercrash) was a passenger flight that crashed during landing at the Amsterdam Schiphol Airport, Netherlands, on 25 February 2009, resulting in the death of nine passengers and crew including all three pilots. 
Answer : 25 February 2009
Output (English): On what date did Turkish Airlines Flight 1951 occur?