TASK DEFINITION: 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.
PROBLEM: Context : Karl Emil Schafer (17 December 1891 -- 5 June 1917) was a German pilot during World War I; he became one of the major German flying aces of the war, with 30 confirmed aerial victories.
Answer : World War I

SOLUTION: What was the war that Karl Emil Schafer fought in?

PROBLEM: Context : Matthias Billen (29 March 1910 -- 1 July 1989) was a German international footballer.
Answer : 1 July 1989

SOLUTION: When did Matthias Billen's death occur?

PROBLEM: Context : The 7th Indian Infantry Division was a war-formed infantry division, part of the Indian Army during World War II that saw service in the Burma Campaign.
Answer : World War II

SOLUTION:
Which war did 7th Indian Infantry Division participate in?