Problem: Given the question: Determine the topic of the question. Question: "when did germans enter paris in ww2?" Topic:
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The answer is:
Liberation of Paris

Problem: Given the question: Determine the topic of the question. Question: "When Is Passover Over?" Topic:
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The answer is:
Passover

Problem: Given the question: Determine the topic of the question. Question: "what is an irregular heartbeat pvc?" Topic:
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The answer is:
Premature ventricular contraction