(subclass GamePiece GameArtifact) | Mid-level-ontology.kif 17027-17027 | GamePiece est une sous-classe de GameArtifact |
(subclass RugbyBall GamePiece) | Sports.kif 324-324 | RugbyBall est une sous-classe de GamePiece |
(subclass Football GamePiece) | Sports.kif 344-344 | Football est une sous-classe de GamePiece |
(subclass GameDie GamePiece) | Mid-level-ontology.kif 17031-17031 | GameDie est une sous-classe de GamePiece |
(subclass Ball GamePiece) | Mid-level-ontology.kif 17035-17035 | Ball est une sous-classe de GamePiece |