json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "Taxation Id",
      "description": "Identification number for taxation purposes",
      "type": "object",
      "properties": {
          "name": {
              "type": "string"
          },
          "ssn": {
              "type": "string",
              "pattern": "^[0-9]{3}-[0-9]{2}-[0-9]{4}$"
          },
          "ein": {
              "type": "string",
              "pattern": "^[0-9]{2}-[0-9]{7}$"
          },
          "itin": {
              "type": "string",
              "pattern": "^9[0-9]{2}-[0-9]{2}-[0-9]{4}$"
          }
      },
      "required": [
          "name"
      ],
      "additionalProperties": false,
      "oneOf": [
          {
              "required": [
                  "ssn"
              ]
          },
          {
              "required": [
                  "ein"
              ]
          },
          {
              "required": [
                  "itin"
              ]
          }
      ]
  }