{
  "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
  "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
  "owl": "http://www.w3.org/2002/07/owl#",
  "dc": "http://purl.org/dc/elements/1.1/",
  "foaf": "http://xmlns.com/foaf/0.1/",
  "skos": "http://www.w3.org/2004/02/skos/core#"
}