{
  "@context": "http://www.w3.org/ns/csvw",
  "tables": [{
    "url": "http://example.org/countries.csv",
    "tableSchema": {
      "columns": [{
        "name": "countryCode",
        "datatype": "string",
        "propertyUrl": "http://www.geonames.org/ontology{#_name}"
      }, {
        "name": "latitude",
        "datatype": "number"
      }, {
        "name": "longitude",
        "datatype": "number"
      }, {
        "name": "name",
        "datatype": "string"
      }],
      "aboutUrl": "http://example.org/countries.csv{#countryCode}",
      "propertyUrl": "http://schema.org/{_name}",
      "primaryKey": "countryCode"
    }
  }, {
    "url": "http://example.org/country_slice.csv",
    "tableSchema": {
      "columns": [{
        "name": "countryRef",
        "valueUrl": "http://example.org/countries.csv{#countryRef}"
      }, {
        "name": "year",
        "datatype": "gYear"
      }, {
        "name": "population",
        "datatype": "integer"
      }],
      "foreignKeys": [{
        "columnReference": "countryRef",
        "reference": {
          "resource": "http://example.org/countries.csv",
          "columnReference": "countryCode"
        }
      }]
    }
  }]
}