Generate a correct and concise answer for the question based on the words in the context.

[EX Q]: Context : Max Matern was a communist storm trooper who was convicted of murder and executed for his involvement in the assassinations of Police Captains Paul Anlauf and Franz Lenck. 
Question : For what crime was Max Matern prosecuted?
[EX A]: murder

[EX Q]: Context : Khadijeh Saqafi (aka Ghods Iran Saqafi) (1913 -- 21 March 2009) was the wife of Ayatollah Ruhollah Khomeini, the leader of the 1979 Iranian Revolution. 
Question : What is Khadijeh Saqafi's spouse's name?
[EX A]: Ruhollah Khomeini

[EX Q]: Context : Cougar Helicopters Flight 91 (also known as Flight 491) was a scheduled flight of a Cougar Sikorsky S-92A (Registration C-GZCH) which ditched on 12 March 2009 en route to the SeaRose FPSO in the White Rose oil field and Hibernia Platform in the Hibernia oilfield off the coast of Newfoundland 55 kilometres (34 mi) east-southeast of St. John's, Newfoundland. 
Question : When did Cougar Helicopters Flight 91 occurr?
[EX A]:
12 March 2009