[
  {
    "task_id": "medium_1",
    "difficulty": "medium",
    "chat_history": [
      "I understand theory but fail numericals",
      "Force problems confuse me"
    ],
    "expected": {
      "weaknesses": ["numericals", "force"],
      "pattern": ["theory", "application gap"]
    }
  },
  {
    "task_id": "medium_2",
    "difficulty": "medium",
    "chat_history": [
      "I study but forget everything in exams",
      "I panic and blank out"
    ],
    "expected": {
      "weaknesses": ["memory", "exam anxiety"],
      "pattern": ["retention issue", "pressure"]
    }
  },
  {
    "task_id": "medium_3",
    "difficulty": "medium",
    "chat_history": [
      "I keep making mistakes in algebra",
      "My steps go wrong"
    ],
    "expected": {
      "weaknesses": ["algebra", "calculation errors"],
      "pattern": ["careless mistakes", "process issue"]
    }
  }
]