Problem: Which African country has the Kwanza as its currency?
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A: angola

Problem: In which British city is the Clifton Suspension Bridge?
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A: bristol

Problem: In Thomas Hardy's novels Casterbridge is based on which real town or city?
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A: dorchester

Problem: The stone, flint, is a form of what near-to-pure compound, formula SiO2?
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A:
silica