{
  "coordinates": "authored 960x640 input pixels; not output tracking",
  "landmarks": [
    {
      "name": "wheel-hub",
      "x": 440,
      "y": 340
    },
    {
      "name": "pawl-pivot",
      "x": 695,
      "y": 152
    },
    {
      "name": "pawl-tip",
      "x": 496.0,
      "y": 243.0051547761429
    },
    {
      "name": "wheel-mark",
      "x": 350,
      "y": 340
    }
  ]
}