{
  "structure": {
    "@tag": "structure",
    "university": {
      "@tag": "university",
      "id": "u",
      "children": [
        {
          "@tag": "university",
          "id": "u1",
          "children": [
            {
              "@tag": "faculty",
              "id": "f11",
              "children": [
                {
                  "@tag": "department",
                  "id": "d111",
                  "group": [
                    {
                      "@tag": "group",
                      "id": "g1111"
                    },
                    {
                      "@tag": "group",
                      "id": "g1112"
                    }
                  ]
                }
              ]
            }
          ]
        },
        {
          "@tag": "filial",
          "id": "u2",
          "children": [
            {
              "@tag": "faculty",
              "id": "f21"
            },
            {
              "@tag": "faculty",
              "id": "f22"
            }
          ]
        }
      ]
    }
  }
}