{
  "@context": {
     "@vocab": "https://www.w3.org/ns/activitystreams",
     "ext": "https://canine-extension.example/terms/",
     "@language": "en"
  },
  "summary": "A note",
  "type": "Note",
  "content": "My dog has fleas.",
  "ext:nose": 0,
  "ext:smell": "terrible"
}