data/nutrition/sample_segments.json

{
  "segments": [
    {
      "class_name": "rice",
      "area_fraction": 0.42
    },
    {
      "class_name": "meat",
      "area_fraction": 0.33
    },
    {
      "class_name": "vegetables",
      "area_fraction": 0.25
    }
  ]
}