anchor.diff:            "id": "Bcn_Welt",
             "temperature": {
               "value": 21.7,
  -            "type": "none"
  +            "type": "Number"
             },
             "humidity": {
               "value": 60,
  -            "type": "none"
  +            "type": "Number"
             },
             "location": {
               "value": "41.3763726, 2.1864475",
  
positive.code:         + types_url: /v2/types (required, string) - URL which points to the types resource
          + subscriptions_url: /v2/subscriptions (required, string) - URL which points to the
            subscriptions resource
          + registrations_url: /v2/registrations (required, string) - URL which points to the
            registrations resource
  
  # Group Entities
  
  
negative.code:   update operations
  * a **context availability interface** for exchanging information on how to obtain context
    information (whether to separate the two interfaces is currently under discussion).
  
  ## Terminology
  
  