{
  "directed": true,
  "multigraph": false,
  "graph": {},
  "nodes": [
    {
      "name": "张三",
      "age": 30,
      "type": "person",
      "id": "person_1"
    },
    {
      "id": "person_2"
    },
    {
      "id": "company_1"
    }
  ],
  "links": [
    {
      "source": "person_1",
      "target": "person_2"
    },
    {
      "source": "person_2",
      "target": "company_1"
    }
  ]
}