Handwritten answer checking, as an API.

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  "questions": [
    {
      "number": "4",
      "awarded": 0,
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      "student_answer": "Temperature",
      "feedback": "Wrong answer. Correct: latitude (distance from the equator)."
    },
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      "max": 3,
      "student_answer": "1. Temperature 2. Humidity 3. Precipitation 4. Atmospheric Pressure 5. Wind",
      "feedback": "Only weather elements listed; no factors of climate explained.",
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