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: Ontario  answers:  ['Canadian dollar']

SOLUTION: what currency does ontario canada use?

PROBLEM: concept: New York Yankees  answers:  ['1923 World Series']

SOLUTION: what year did yankees win their first world series?

PROBLEM: concept: William Mckinley  answers:  ['1897']

SOLUTION:
what year did william mckinley became president?