{
  "observation": {
    "images": {
      "front": {
        "original_key": "observation.images.front"
      },
      "wrist": {
        "original_key": "observation.images.wrist"
      }
    },
    "state": {
      "original_key": "observation.state"
    }
  },
  "action": {
    "original_key": "action"
  },
  "annotation": {
    "human.task_description": {
      "original_key": "annotation.human.action.task_description"
    }
  }
}