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.

[Q]: Who scored the most hat tricks in football?
[A]: Who scored the most hat tricks in UEFA Champions League football?


[Q]: Who sings i wanna be a billionaire?
[A]: Who sings the song "Billionaire"?


[Q]: Who won nathan's hot dog eating contest?
[A]:
Who won the men's competition of Nathan's Hot Dog Eating Contest in 2017?