{
    "index": {
        "type_name": "default",
        "entity": "UPB_00000021",
        "label": "1"
    },
    "part_level": {
        "part_name": "Base Support Frame",
        "affordance": 8,
        "graspable": false,
        "basic_description": "Rectangular steel tube frame at the cabinet base.",
        "functional_description": "Ties the legs together and stiffens the lower structure to resist racking.",
        "movement_description": "No motion; rigidly fixed to cabinet body and legs.",
        "grasp_description": "Normally not handled; may be touched when moving the cabinet."
    },
    "basic_info": {
        "material": "metal/Steel_Q235",
        "density": 7.85,
        "young": 200,
        "hardness": 140,
        "poisson": 0.3,
        "friction": 0.4
    },
    "kinematic_info": {
        "motion_types": [
            "D"
        ],
        "motion_info": {}
    }
}