{
  "type": "object",
  "properties": {
    "symbol": {
      "type": "string",
      "description": "The symbol of the trade good."
    },
    "tradeVolume": {
      "type": "integer",
      "description": "The average volume flowing through the market for this type of good.",
      "minimum": 1
    },
    "supply": {
      "type": "string",
      "description": "A rough estimate of the total supply of this good in this marketplace.",
      "enum": [
        "HIGH",
        "AVERAGE",
        "LOW"
      ]
    },
    "purchasePrice": {
      "type": "integer",
      "description": "The price at which this good is sold.",
      "minimum": 0
    },
    "sellPrice": {
      "type": "integer",
      "description": "The price at which this good is bought.",
      "minimum": 0
    }
  }
}