json_schema: {
    "properties": {
      "distance": {
        "description": "The distance traveled in kilometers",
        "type": "number"
      },
      "fuel_type": {
        "description": "The type of fuel used",
        "type": "string"
      },
      "passenger_count": {
        "description": "The number of passengers",
        "type": "integer"
      },
      "vehicle_type": {
        "description": "The type of vehicle used",
        "type": "string"
      }
    },
    "required": [
      "distance",
      "vehicle_type",
      "fuel_type",
      "passenger_count"
    ],
    "type": "object"
  }