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.

[Q]: Who sang the song cotton fields back home?
[A]: Who sang the song cotton fields back home in 1940?


[Q]: Model of the solar system that places earth in the center?
[A]: Whose model of the solar system places Earth in the center?


[Q]: Where did the aztecs live in south america?
[A]:
Where did the Aztecs live in South America that is now the center of Mexico City?