In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Q: Where does the earth's magnetic field originate?

A: Earth's core
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Q: Why did the united states pursue a policy of containment?

A: prevent the spread of communism after the end of World War II
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Q: Who played penny in lost in space 2018?

A:
Mina Sundwall
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