{
  "@context": {
    "name": "http://xmlns.com/foaf/0.1/name",
    "isKnownBy": { "@reverse": "http://xmlns.com/foaf/0.1/knows", "@container": "@set" }
  },
  "@id": "http://example.com/people/markus",
  "name": "Markus Lanthaler",
  "isKnownBy": [
    { "@id": "http://example.com/people/dave" }
  ]
}