| ++Philosurfical: |
| ++Philosurfical: |
| •owl:Thing |
| •PHILOSURFICAL-ENTITY |
| •CRM-ENTITY |
| •PERSISTENT-ITEM |
| •THING |
| •MAN-MADE-THING |
| •CONCEPTUAL-OBJECT |
| •PROPOSITIONAL-CONTENT |
| •DESIGN-PROPOSITION |
| •PIECE-OF-MUSIC |
| •WORK |
| •PIECE-OF-MUSIC |
Class(PIECE-OF-MUSIC partial DESIGN-PROPOSITION
WORK)