{
  "@context": {
    "@version": 1.1,
    "schema": "https://schema.org/",
    "vulcan": "https://vulcan-materials.com/vocab/",
    "xsd": "http://www.w3.org/2001/XMLSchema#",

    "Organization": "schema:Organization",
    "Corporation": "schema:Corporation",
    "Product": "schema:Product",
    "Place": "schema:Place",

    "VulcanMaterials": {
      "@id": "vulcan:VulcanMaterials",
      "@type": "schema:Corporation"
    },

    "Aggregate": {
      "@id": "vulcan:Aggregate",
      "@type": "schema:Product"
    },

    "Quarry": {
      "@id": "vulcan:Quarry",
      "@type": "schema:Place"
    },

    "CrushedStone": {
      "@id": "vulcan:CrushedStone",
      "@type": "vulcan:Aggregate"
    },

    "Sand": {
      "@id": "vulcan:Sand",
      "@type": "vulcan:Aggregate"
    },

    "Gravel": {
      "@id": "vulcan:Gravel",
      "@type": "vulcan:Aggregate"
    },

    "AsphaltMix": {
      "@id": "vulcan:AsphaltMix",
      "@type": "schema:Product"
    },

    "ReadyMixedConcrete": {
      "@id": "vulcan:ReadyMixedConcrete",
      "@type": "schema:Product"
    },

    "name": {
      "@id": "schema:name",
      "@type": "xsd:string"
    },

    "description": {
      "@id": "schema:description",
      "@type": "xsd:string"
    },

    "location": {
      "@id": "schema:location",
      "@type": "@id"
    },

    "material": {
      "@id": "schema:material",
      "@type": "xsd:string"
    },

    "quantity": {
      "@id": "schema:quantity",
      "@type": "schema:QuantitativeValue"
    },

    "address": {
      "@id": "schema:address",
      "@type": "schema:PostalAddress"
    }
  }
}