{
  "description": "Extraction details.",
  "type": "object",
  "properties": {
    "shipSymbol": {
      "type": "string",
      "minLength": 1,
      "description": "Symbol of the ship that executed the extraction."
    },
    "yield": {
      "$ref": "./ExtractionYield.json",
      "description": "Yields from the extract operation."
    }
  },
  "required": [
    "shipSymbol",
    "yield"
  ]
}