Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Q: Mar Chiquita (Cordoba) is the largest natural salt lake in which South American country?

A: mar chiquita lake
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Q: Which country had a parliament called the Duma?

A: state duma
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Q: Who carried the British flag at the closing ceremony of the 2004 Summer Olympic Games?

A:
2004 summer olympics
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