annotations/annotation_00018.json

[
  {
    "label": "frontier",
    "start": [
      298.0,
      532.0
    ],
    "end": [
      364.0,
      564.0
    ]
  },
  {
    "label": "frontier",
    "start": [
      1308.0,
      762.0
    ],
    "end": [
      1462.0,
      786.0
    ]
  }
]