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.

Where are most of the us oil refineries located?
Where with respect to geographical features are most of the us oil refineries located?

Last president that was not a democrat or republican?
Last president that was not technically a democrat or republican, as part of the National Union Party?

The stimulus package proposed by the bush administration in early 2008 relied upon?

The stimulus package proposed by the bush administration in early 2008 relied upon whose approval?