{
  "@context": [
    "http://api.conceptnet.io/ld/conceptnet5.7/context.ld.json"
  ],
  "@id": "/a/[/r/ExternalURL/,/c/en/piggyback/v/wn/contact/,/http:/wordnet-rdf.princeton.edu/wn31/201604855-v/]",
  "error": {
    "details": "'/a/[/r/ExternalURL/,/c/en/piggyback/v/wn/contact/,/http:/wordnet-rdf.princeton.edu/wn31/201604855-v/]' is not an assertion in ConceptNet.",
    "status": 404
  }
}