{
  "@context": {
    "dc": "http://purl.org/dc/elements/1.1/",
    "ex": "http://example.org/vocab#"
  },
  "@explicit": true,
  "@type": "ex:Library",
  "ex:contains": {
    "@explicit": true,
    "@type": "ex:Book",
    "dc:title": {},
    "ex:contains": {
      "@explicit": true,
      "@type": "ex:Chapter",
      "dc:title": {},
      "ex:null": {}
    }
  }
}