{
  "title": "Rush Enterprises Commercial Vehicle",
  "description": "Structure of a commercial vehicle at Rush Truck Centers",
  "fields": [
    {
      "name": "vehicleId",
      "type": "string",
      "required": true,
      "description": "Unique vehicle identifier"
    },
    {
      "name": "vin",
      "type": "string",
      "required": false,
      "description": "17-character Vehicle Identification Number"
    },
    {
      "name": "type",
      "type": "string",
      "required": true,
      "description": "Condition: new or used"
    },
    {
      "name": "make",
      "type": "string",
      "required": false,
      "description": "Manufacturer (Peterbilt, International, Hino, Kenworth)"
    },
    {
      "name": "model",
      "type": "string",
      "required": false,
      "description": "Vehicle model name"
    },
    {
      "name": "year",
      "type": "integer",
      "required": false,
      "description": "Model year"
    },
    {
      "name": "category",
      "type": "string",
      "required": false,
      "description": "Vehicle category (semi-truck, medium-duty, etc.)"
    },
    {
      "name": "mileage",
      "type": "integer",
      "required": false,
      "description": "Odometer reading in miles"
    },
    {
      "name": "price",
      "type": "number",
      "required": false,
      "description": "List price in USD"
    },
    {
      "name": "location",
      "type": "string",
      "required": false,
      "description": "Rush Truck Center location name"
    }
  ]
}