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: Olympic Games  question:  which city held the summer olympics twice?

A: ['Olympic games']
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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: Greece  question:  which island in greece?

A:
['Ionian Islands']
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