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        "left_forearm": {
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        },
        "right_forearm": {
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        },
        "neck": {
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        },
        "left_hand": {
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        },
        "right_hand": {
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        },
        "spine": {
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        }
    },
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        },
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        },
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        },
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        },
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        },
        "right_hand": {
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    },
    "video": {
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            "original_key": "observation.images.cam_zed_left"
        },
        "cam_zed_right": {
            "original_key": "observation.images.cam_zed_right"
        }
    },
    "annotation": {
        "human.action.task_description": {
            "original_key": "task_index"
        }
    }
}