TASK DEFINITION: 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.
PROBLEM: When was the return of the native written?

SOLUTION: When was the return of the native started to be written?

PROBLEM: What was the last movie julia roberts was in?

SOLUTION: What was the last movie julia roberts was in in 2017?

PROBLEM: Who was the most powerful witch in charmed?

SOLUTION:
Who was the most powerful witch in charmed as youngest sister?