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: When did the voting age change from 21 to 18?

A: When did the debate begin to lower the voting age from 21 to 18?
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Q: Who sang the song never on a sunday?

A: Who sang the song "Never on Sunday" in Greek?
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Q: When did the smoking ban come in in england?

A:
What date did the smoking ban come into law in england?
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