Problem: Given the question: Due to economic sanctions and trade embargoes, Cuban citizens primarily use cars designed in the late 1940s and early 1950s. These cars contain engines that were designed before the introduction of the catalytic converter. Meanwhile trade relations between nearby Panama and Japan have enabled the citizens of Panama to drive cars with the most up to date catalytic converter technology possible. Given the paragraph above, please answer correctly the following question: Which country's cars, Cuba's or Panama's, will emit less volatile hydrocarbons?
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The answer is:
Panama's

Problem: Given the question: Two farmers sold their produce and milk on a large nearby market. John practiced organic farming and also produced organic milk, while Danny sold non-organic produce and milk. Given the paragraph above, please answer correctly the following question: Which farmer sold more foods free of contaminations?
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The answer is:
John

Problem: Given the question: Two neighboring regions were exposed to different levels of abiotic stress. Eastern region was exposed to high levels of abiotic stress, while Western region was almost stress-free. Given the paragraph above, please answer correctly the following question: Which region had fewer animal species inhabiting it?
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The answer is:
Eastern