{
  "@context": "https://auroralh2020.github.io/auroral-ontology-contexts/marketplace/marketcontext.json",
  "identifier": "3",
  "name": "Juan",
  "buy": {
    "productId": "23467",
    "productname": "Briquettes",
    "quantity": {
      "stockId": "12",
      "stockQuantity": "156 kg"
    },
    "category": {
      "categoryId": "4",
      "categoryName": "Biomass",
      "categoryType": "1"
    }
  }
}