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 named the seven wonders of the world?

SOLUTION: Who named six of the seven wonders of the world around 100 BC?

PROBLEM: What was the number one song on june 17 1999?

SOLUTION:
What was the number one song on billboard hot 100 on june 17 1999?