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.

Ex Input:
Who won the best picture in the oscars?

Ex Output:
Which film won the best picture in the 90th oscars?


Ex Input:
When did the voting age change from 21 to 18?

Ex Output:
When did the debate begin to lower the voting age from 21 to 18?


Ex Input:
Who played carrie on the little house on the prairie?

Ex Output:

Who played carrie on the 1974 movie little house on the prairie?