Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.

Q: concept: Hannah Montana  question:  who played hannah montana best friend?

A: ['Emily Osment']
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Q: concept: Henry Hudson  question:  what river did henry hudson sail up?

A: ['Hudson River']
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Q: concept: Barack Obama  question:  what university did barack obama attend?

A:
['Columbia University']
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