No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 4741-4741 | Board or block is a subclass of artifact |
No TPTP formula. May not be expressible in strict first order. | Sports.kif 1265-1265 | Water board is a subclass of board or block |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 4750-4750 | Brick is a subclass of board or block |