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.

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

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


Input: Consider Input: Who sings gran torino at the end of the movie?

Output: What performer sings Gran Torino at the end of the movie?


Input: Consider Input: Who sings the song take this job and shove it?


Output: Who first sings the song take this job and shove it?