instruction:
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.
question:
Context : Since its creation in 1923, The Hague Academy of International Law has occupied premises at the Peace Palace. 
Answer : 1923
answer:
When date was the official opening of Hague Academy of International Law?


question:
Context : Sergeant-Observer William James Middleton DFM was a British World War I flying ace credited with six aerial victories. 
Answer : World War I
answer:
What war was William James Middleton in?


question:
Context : Ivy Priaulx Rainier (3 February 1903 -- 10 October 1986) was a South African-British composer. 
Answer : composer
answer:

What kind of  occupation does Priaulx Rainier have?