{
  "categories": [
    {
      "name": "Food",
      "children": [
        { "name": "Beef" },
        { "name": "Pork" },
        { "name": "Fish" },
      ],
    },
    {
      "name": "Beer",
      "children": [
        { "name": "Weiss" },
        { "name": "Stout" },
      ],
    },
    {
      "name": "Cigarettes", // name is mandatory
    },
  ],
}