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Term 1: Term 2:

(subclass DisplayArtifact Artifact) Mid-level-ontology.kif 3892-3892
(subclass Sign DisplayArtifact) Mid-level-ontology.kif 14732-14732
(subclass Whiteboard DisplayArtifact) Mid-level-ontology.kif 23585-23585
(subclass Blackboard DisplayArtifact) Media.kif 1091-1091
(subclass Poster DisplayArtifact) Media.kif 1106-1106


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