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.

Example Input: When did the first answering machine come out?
Example Output: When did the first commercially successful answering machine come out?

Example Input: Which fast and furious movies is han in?
Example Output: Which Fast and Furious Movies is Han in, with new footage?

Example Input: Who sings gran torino at the end of the movie?
Example Output:
What performer sings Gran Torino at the end of the movie?