| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 2519-2519 | Filter e' uma sub-classe de Aparelho |
| No TPTP formula. May not be expressible in strict first order. | MilitaryDevices.kif 1363-1363 | AbsoluteFilter e' uma sub-classe de Filter |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 917-917 | FuelFilter e' uma sub-classe de Filter |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 938-938 | AirFilter e' uma sub-classe de Filter |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 1689-1689 | CharcoalFilter e' uma sub-classe de Filter |
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