input: Please answer the following: John is comparing his medical record with his father's and son's medical records. John is 40 years old; his father is 70 years old; and his son is 10 years old. It appears that both John and his father has Retinitis. But his son does not have Retinitis. Who is most probably not infected by infectious agents, John or John's son?
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output: John's son

input: Please answer the following: David was interested in climate change issues. He realized that to understand climate change issues he first needed to distinguish between the terms weather and climate. To that end, he labeled weather as term A. Then he labeled climate as term B. He found it easier to understand their differences in that way. Would term B change less or more frequently than term A?
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output: less

input: Please answer the following: Tim and Fred were two students. Tim studied about negative feedback and the pancreas, while Fred studied about the stomach and the jejunum. Which student read more about the pancreas secreting insulin to stimulate the conversion of glucose into glycogen?
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output: Tim

input: Please answer the following: Dan found three rattle snakes: one only had one rattle, the second snake had 4 rattles and the third snake had seven rattles on its tail. Which snake was younger the first or the third snake Dan found?
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output:
the first