TASK DEFINITION: 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.
PROBLEM: Where are most of the us oil refineries located?

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

PROBLEM: What are the two types of mixtures in science?

SOLUTION: What is the type of mixtures in science in which its constituents are distributed uniformly?

PROBLEM: What is the second largest country in south asia?

SOLUTION:
What is the second largest country in South Asia by land and water area?