[
  {
    "@id": "http://example.com/vocab#class",
    "@type": [ "http://www.w3.org/2000/01/rdf-schema#Class" ],
    "http://www.w3.org/2000/01/rdf-schema#subClassOf": [
      { "@id": "http://example.com/vocab#someOtherClass"}
    ]
  }
]
