TASK DEFINITION: You are given a concept, and a list of answers. You should generate a question about the concept that leads to the given answer(s).
PROBLEM: concept: Judy Collins answers: ['Peter Taylor', 'Louis Nelson']

SOLUTION: who was judy collins married to?

PROBLEM: concept: Ontario answers: ['Canadian dollar']

SOLUTION: what currency does ontario canada use?

PROBLEM: concept: Missouri River answers: ['Mississippi River']

SOLUTION:
where does missouri river end?