{
  "segments": [
    {
      "id": 1,
      "speaker": "Alice",
      "start": 0.0,
      "end": 1.5,
      "text": "Hello world."
    },
    {
      "id": 2,
      "speaker": "Bob",
      "start": 2.0,
      "end": 3.5,
      "text": "Hi there.",
      "categories": ["greeting"]
    }
  ]
}