| ISA | SOCIAL-OBJECT-RELATION |
| SUBCLASSES | PLACE-OF-WORK-OF |
| DESCENDANTS | PLACE-OF-WORK-OF |
| ANCESTORS | ALL OBJECT-RELATION PROPERTY RELATION SOCIAL-OBJECT-RELATION |
| INHERITED RELATIONS | DOMAIN : OBJECT (from OBJECT-RELATION) RANGE : OBJECT (from RELATION) EVENT (from RELATION) |