[Q]: Determine the topic of the question. Question: "who rules communism government?" Topic:
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[A]: Communist state

[Q]: Determine the topic of the question. Question: "what is lung effusion?" Topic:
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[A]: Pleural effusion

[Q]: Determine the topic of the question. Question: "what fantasy american football means?" Topic:
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[A]: Fantasy football (American)

[Q]: Determine the topic of the question. Question: "what is the official language of america??" Topic:
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[A]:
Languages of the United States