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.

Who became president of the republic of china after the overthrow of the qing dynasty?
Who was the first formal president of the Republic of China after the overthrow of the Qing Dynasty?

Who was formula one world champion four times in a row from 2010 to 2013?
What driver was formula one world champion four times in a row from 2010 to 2013?

Who sang must be talking to an angel?

Which duo sang must be talking to an angel?