(subclass BoardOrBlock Artifact) | Mid-level-ontology.kif 5197-5197 | Board or block is a subclass of artifact |
(subclass WaterBoard BoardOrBlock) | Sports.kif 1279-1279 | Water board is a subclass of board or block |
(subclass Brick BoardOrBlock) | Mid-level-ontology.kif 5206-5206 | Brick is a subclass of board or block |
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