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.

[EX Q]: Context : Continental Airlines Flight 1713 crashed while taking off in a snowstorm from Stapleton International Airport in Denver, Colorado on 15 November 1987. 
Answer : 15 November 1987
[EX A]: What is the full date that Continental Airlines Flight 1713 crashed on?

[EX Q]: Context : Charles Calvin Rogers (September 6, 1929 -- September 21, 1990) was a United States Army officer and a recipient of America's highest military decoration--the Medal of Honor--for his actions in the Vietnam War. 
Answer : Vietnam War
[EX A]: In which war did Charles Calvin Rogers fought?

[EX Q]: Context : The 1928 Imperial Airways Vickers Vulcan crash occurred on 13 July 1928 when a Vickers Vulcan on a test flight from Croydon Airport with a pilot and five passengers crashed near Purley, Surrey three miles from the airport, with the loss of four passengers. 
Answer : 13 July 1928
[EX A]:
What is the full date that 1928 Imperial Airways Vickers Vulcan crash crashed on?