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.
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Question: When did the nfl start playing on christmas day?

Answer: When did the nfl first start playing on christmas day?


Question: When did my hero academia season 2 end?

Answer: When did my hero academia season 2 end in Japan?


Question: When was the immigration reform and control act passed?

Answer:
When was the immigration reform and control act passed on senate?