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: Who is the highest ranked golfer in the world?

Answer: Who is the highest ranked golfer in the world on February 19, 2017?


Question: When did the first usb flash drive appear on the retail market?

Answer: When did the first usb flash drive appear on the global retail market?


Question: When does the movie dog days come out?

Answer:
When does the movie Dog Days (1925) come out?