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 : The Boeing KC-767 is a military aerial refueling and strategic transport aircraft developed from the Boeing 767-200ER.
Answer : Boeing 767-200ER

Output: The Boeing KC-767 is based upon what?

Input: Consider Input: Context : Antoine Argoud (26 June 1914 -- 10 June 2004) was a French Army officer specializing in counter-insurgency during the Algerian War of Independence.
Answer : Algerian War

Output: In what war did Antoine Argoud fight in?

Input: Consider Input: Context : Projections back from dated individuals suggest that Coel Hen lived around AD 350--420, during the time of the Roman departure from Britain.
Answer : 420
Output: What year did Coel Hen die in?