[{
  "@id": "http://example.com/article",
  "http://example.com/author": [
    {"@id": "http://example.com/person/2", "http://example.com/prop": [{"@id": "http://example.com/guest"}]},
    {"@id": "http://example.com/person/3", "http://example.com/prop": [{"@id": "http://example.com/guest"}]},
    {"@id": "http://example.com/person/1", "http://example.com/prop": [{"@id": "http://example.com/regular"}]}
  ]
}]