[
  {
    "question": "Question text...",
    "options": [
      "Option A",
      "Option B",
      "Option C",
      "Option D"
    ],
    "correctIndex": 1,
    "explanation": "Full explanation...",
    "topic": "Subtopic name",
    "difficulty": "medium"
  }
]

[
  {
    "type": "multi_true_false",
    "question": "Are the following statements true or false?",
    "statements": [
      { "text": "Statement A...", "answer": true },
      { "text": "Statement B...", "answer": false }
    ],
    "explanation": "Full explanation...",
    "topic": "Subtopic name",
    "difficulty": "medium"
  }
]