| ISA | EVENT-OBJECT-RELATION |
| SUBCLASSES | AFFECTS-BODY-PART DIAGNOSED-WITH-THE-USE-OF SIDE-EFFECT-OF TREATED-WITH-THE-USE-OF USES |
| DESCENDANTS | AFFECTS-BODY-PART AFFECTS-PHYSIOLOGICAL-SYSTEM AFFECTS-TISSUE DIAGNOSED-WITH-THE-USE-OF SIDE-EFFECT-OF TREATED-WITH-THE-USE-OF USES |
| ANCESTORS | ALL EVENT-OBJECT-RELATION PROPERTY RELATION |
| RELATIONS | DOMAIN : DISEASE-EVENT |
| INHERITED RELATIONS | RANGE : OBJECT (from RELATION) EVENT (from RELATION) |