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 is the leader of the senate 2018?

SOLUTION: Who was the majority leader of the senate in 2018?

PROBLEM: Who wrote the song too marvelous for words?

SOLUTION: Who wrote the lyrics to the song too marvelous for words?

PROBLEM: Who is the editor of the canberra times?

SOLUTION:
Who is the editor of the canberra times since 2013?