| Class Summary |
| Actor | Imported. An subject producing ufological events through its actions.
|
| Being | Imported. A single physical and intelligent being. |
| Birth | Imported. Being's birth Reference Implementation. |
| Employment | Imported. |
| Event | Imported. An Event of interest, such as an ufological event (Sighting, InvestigationAct, etc.)
or a more common one (Employment, Birth, etc.).
An event can be considered as sentence stating what happened.
|
| HumanBeing | Imported. A human being |
| Identity | Imported. An Actor may have multiple identities (pseudonyms). |
| Occupation | Imported. |
| Organization | Imported. |
| UnidentifiedBeing | Imported. A being that cannot be classified in a known category. |