| ISA | CLASSIFICATION |
| SUBCLASSES | GLEASON-GRADING-SYSTEM |
| DESCENDANTS | GLEASON-GRADING-SYSTEM |
| ANCESTORS | ABSTRACT-OBJECT ALL CLASSIFICATION MENTAL-OBJECT OBJECT |
| INHERITED RELATIONS | ELEMENT-OF : COLLECTION (from OBJECT) PART-OF : OBJECT (from OBJECT) THEME-OF : EVENT (from ABSTRACT-OBJECT) |