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 became president of the republic of china after the overthrow of the qing dynasty?

Answer: Who was the first formal president of the Republic of China after the overthrow of the Qing Dynasty?


Question: Where is the billboard music awards 2017 held?

Answer: What venue is the billboard music awards 2017 held in?


Question: Who become the oldest atp world number one?

Answer:
Who was the oldest player to become ATP world number 1?