{
  "nodes": [
    {
      "id": "root",
      "question": "是否有订单号？",
      "yes": "check_received",
      "no": "human",
      "terminal": null
    },
    {
      "id": "check_received",
      "question": "是否已收货？",
      "yes": "aftersales",
      "no": "logistics",
      "terminal": null
    },
    {
      "id": "human",
      "question": null,
      "yes": null,
      "no": null,
      "terminal": "human"
    },
    {
      "id": "logistics",
      "question": null,
      "yes": null,
      "no": null,
      "terminal": "logistics"
    },
    {
      "id": "aftersales",
      "question": null,
      "yes": null,
      "no": null,
      "terminal": "aftersales"
    }
  ]
}