{
   "@context": {
      "author": {
         "@id": "http://example.com/vocab/author",
         "@container": "@index"
      }
   },
   "@id": "http://example.com/article",
   "author": {
      "regular": {
         "@id": "http://example.org/person/1"
      },
      "guest": {
         "@id": "http://example.org/guest/cd24f329aa"
      }
   }
}