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 sang i'm telling you i'm not going?

SOLUTION: Which character in Dreamgirls sang I'm telling you I'm not going?

PROBLEM: When did a/c first appear in homes?

SOLUTION: When did the first a/c unit appear in a home?

PROBLEM: When have the minnesota vikings been in the super bowl?

SOLUTION:
In what years have the Minnesota Vikings been in the super bowl?