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.

Ex Input:
Where does vanilla come from in the world?

Ex Output:
Which country is the top vanilla producer in the world?


Ex Input:
Who won the 2017 british open golf tournament?

Ex Output:
Which person won the 2017 british open golf tournament?


Ex Input:
Who won between john cena and the rock?

Ex Output:

Who won between john cena and the rock at WrestleMania in 2012?