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: Who plays king edward in the white queen?

SOLUTION: Who plays King Edward IV in The White Queen?

PROBLEM: Who played eddard stark in game of thrones?

SOLUTION: Who played Eddard Stark as an adult in Game of Thrones?

PROBLEM: Who played george bailey in it's a wonderful life?

SOLUTION:
Who played adult george bailey in it's a wonderful life?