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: When does the movie mark felt come out?

SOLUTION: When does the movie mark felt come out at TIFF?

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: When is the last time there was a solar eclipse in the us?

SOLUTION:
When is the last time there was a total solar eclipse in the us, as of 2017?