{
  "@context": "https://www.w3.org/ns/activitystreams",
  "type": "Person",
  "name": "Sally",
  "location": {
    "name": "Over the Arabian Sea, east of Socotra Island Nature Sanctuary",
    "type": "Place",
    "longitude": 12.34,
    "latitude": 56.78,
    "altitude": 90,
    "units": "m"
  }
}