Problem: What country experienced the world's biggest electricity power-cut in July 2012?
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A: india

Problem: Etihad is the national airline of which Middle Eastern country?
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A: united arab emirates

Problem: Carmen Polo was the wife of which 20th century dictator?
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A: franco

Problem: What is a feature of wood, sand, cereal, and also 0.0648 grams?
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A:
grain