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: Japan  answers:  ['Yoshihiko Noda']

SOLUTION: who is prime minister of japan 2011?

PROBLEM: concept: J J Thomson  answers:  ['Electron']

SOLUTION: what subatomic particles did jj thomson discover?

PROBLEM: concept: United States  answers:  ['War in Afghanistan']

SOLUTION:
what two countries is the us at war with?