TASK DEFINITION: In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to write a question that clarifies the given question in such a way that the generated question has one unique answer.
PROBLEM: Who demonstrated that a reflex could be conditioned to a neutral stimulus?

SOLUTION: Who is best-known for demonstrating that a reflex could be conditioned to a neutral stimulus?

PROBLEM: Who constructed the suez canal and when was it finished?

SOLUTION: Who is the company that constructed the suez canal?

PROBLEM: When was the people's republic of china recognized?

SOLUTION:
When was the people's republic of china first recognized by communist states?