No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 1990-1990 | WritingDevice e' uma sub-classe de Aparelho |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 1816-1816 | Pencil e' uma sub-classe de WritingDevice |