{
  "id": "123458",
  "name": "Temperature Measurement",
  "source": "Therometer",
  "sourceTime": "2014-01-01T16:55:54+11:00",
  "entityRef": "http://example.org/thermometers/99981",
  "context": {
    "value": "37.5",
    "units": "Celsius"
  }
}