Problem: Given the question: What is the question to: "The kilobar, which is to say 1000 grams in mass, is the bar that is more manageable and is used extensively for trading and investment."? The topic is Gold bar.
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The answer is:
"how much does a gold bar weigh?"

Problem: Given the question: What is the question to: "Propolis is a resinous mixture that honey bees collect from tree buds, sap flows, or other botanical sources."? The topic is Propolis.
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The answer is:
"what is honey bee propolis?"

Problem: Given the question: What is the question to: "The mill or mille () (sometimes mil in the UK , when discussing property taxes in the United States , or previously in Cyprus and Malta ) is a now-abstract unit of currency used sometimes in accounting ."? The topic is Mill (currency).
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The answer is:
"what is 1 mil guaranies in united states dollars?"