{
  "@context": {
    "foaf": "http://xmlns.com/foaf/0.1/",
    "knows": {"@id": "http://xmlns.com/foaf/0.1/knows", "@type": "@id"}
  },
  "@id":    "http://greggkellogg.net/foaf#me",
  "knows":  "http://manu.sporny.org/#me"
}