No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 17000-17000 | Game piece is a subclass of game artifact |
No TPTP formula. May not be expressible in strict first order. | Sports.kif 324-324 | Rugby ball is a subclass of game piece |
No TPTP formula. May not be expressible in strict first order. | Sports.kif 344-344 | Foot ball is a subclass of game piece |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 17004-17004 | Game die is a subclass of game piece |
No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 17008-17008 | Ball is a subclass of game piece |