{
    "contact_points": [
        {
            "id": [0, 1],
            "description": "On the center of the shoe",
            "usage": "Used for grasping the shoe."
        }
    ],
    "functional_points": [
        {
            "id": 0,
            "description": "At the center of the bottom of the shoe.",
            "usage": "Used to place the shoe on a surface."
        }
    ]
}