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]: When did the afghanistan war start and end?
[A]: When did the afghanistan war first phase start?


[Q]: What day of the year is mothers day always celebrated?
[A]: What day of the year is mothers day always celebrated in the US?


[Q]: Who was the first chemist that tried to group elements based on their properties?
[A]:
Who was the first chemist to start grouping elements based on their properties?