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).
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Question: concept: Iran answers: ['Islamic republic', 'Theocracy', 'Unitary state']

Answer: what type of political system does iran have?

Question: concept: Milwaukee Brewers answers: ['Seattle Pilots']

Answer: what was the milwaukee brewers old name?

Question: concept: Isaac Newton answers: ['He assumed that the rate of fall is proportional to the force of gravity and that this force is inversely proportional to the square of the distance from the center of the Earth.']

Answer:
what discovery did sir isaac newton make about force?