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 : Since its creation in 1923, The Hague Academy of International Law has occupied premises at the Peace Palace.
Answer : 1923

SOLUTION: When date was the official opening of Hague Academy of International Law?

PROBLEM: Context : The Roland JX-3P is a synthesizer produced by Roland Corporation of Japan in 1983.
Answer : Roland Corporation

SOLUTION: What studio produced Roland JX-3P?

PROBLEM: Context : Franz Kolb (fl. 1880s) was a German pharmacist and the inventor of the modeling paste Plastilin.
Answer : pharmacist

SOLUTION:
What was Franz Kolb's career?