{
  "@context": {
    "owl": "http://www.w3.org/2002/07/owl#",
    "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
    "ex": "https://example.org/ns#",
    "id": "@id",
    "type": "@type",
    "ex:properties": { "@container": "@list" }
  }
}