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.

Q: Who demonstrated that a reflex could be conditioned to a neutral stimulus?

A: Who is best-known for demonstrating that a reflex could be conditioned to a neutral stimulus?
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Q: When did england last get into semi finals?

A: When did England last get into the semi finals of the men's FIFA world cup?
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Q: Who won season 13 of worst cooks in america?

A:
Which chef instructor won season 13 of worst cooks in america?
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