Problem: Given the question: Determine the topic of the question. Question: "where did the persian war take place?" Topic:
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The answer is:
Greco-Persian Wars

Problem: Given the question: Determine the topic of the question. Question: "what are batteries made up of?" Topic:
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The answer is:
Automotive battery

Problem: Given the question: Determine the topic of the question. Question: "HOW MANY STRIPES ARE ON THE AMERICAN FLAG?" Topic:
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The answer is:
Flag of the United States