No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 17767-17767 | Land transportation is a subclass of transportation |
No TPTP formula. May not be expressible in strict first order. | Transportation.kif 1931-1931 | Cycling is a subclass of land transportation |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 17791-17791 | Transport via a road vehicle is a subclass of land transportation |