{
    "index": {
        "type_name": "default",
        "entity": "UPB_00000021",
        "label": "24"
    },
    "part_level": {
        "part_name": "Center Rail D",
        "affordance": 9,
        "graspable": false,
        "basic_description": "Slim steel rail aligned across the center opening.",
        "functional_description": "Provides guidance/support for sliding parts.",
        "movement_description": "Stationary.",
        "grasp_description": "Not grasped."
    },
    "basic_info": {
        "material": "metal/Steel_Q235",
        "density": 7.85,
        "young": 200,
        "hardness": 140,
        "poisson": 0.3,
        "friction": 0.38
    },
    "kinematic_info": {
        "motion_types": [
            "D"
        ],
        "motion_info": {}
    }
}