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 should be called the father of radio?

Answer: Who should be called the father of radio, according to their own opinion?


Question: Where is the x factor final 2017 filmed?

Answer: In what building is the x factor final 2017 filmed?


Question: Who created the plan that became known as the american system?

Answer:
Who  was the creation of the American System based on?