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 Q]: Who was formula one world champion four times in a row from 2010 to 2013?
[EX A]: What driver was formula one world champion four times in a row from 2010 to 2013?

[EX Q]: How many volumes of sword art online are there?
[EX A]: How many light novel volumes of sword art online are there?

[EX Q]: When was the last time the 76ers won a game?
[EX A]:
When was the last time the 76ers won a championship?