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 did the movie knock knock come out?

SOLUTION: When did the short animated film knock knock come out featuring Woody Woodpecker?

PROBLEM: Who sang the best day of my life?

SOLUTION: Who sang the 2013 version of Best Day of My Life?

PROBLEM: Where is the darts being held in las vegas?

SOLUTION:
Where is the 2017 US darts masters being held in las vegas?