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 did ready player one come to theaters?

SOLUTION: When did ready player one premiere at South by Southwest?

PROBLEM: Who came up with the saying the customer is always right?

SOLUTION: Who from London came up with the saying the customer is always right?

PROBLEM: When did northern ireland and southern ireland separate?

SOLUTION:
When was the act passed, which separated Northern and Southern Ireland?