[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: "how many days does the chinese new year last?" Topic:
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[A]: Chinese New Year

[Q]: Determine the topic of the question. Question: "what freezes faster? hot or cold water??" Topic:
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[A]: Mpemba effect

[Q]: Determine the topic of the question. Question: "what are the different types of cross country skiing?" Topic:
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[A]:
Cross-country skiing