| Sign | |
| appearance as argument number 1 |
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|
| (documentation Sign EnglishLanguage "A Sign is a DisplayArtifact that displays any range of information") | Mid-level-ontology.kif 17120-17120 | |
| (subclass Sign ContentBearingObject) | Mid-level-ontology.kif 17118-17118 | 子類 Sign and ContentBearingObject |
| (subclass Sign DataDisplayDevice) | Media.kif 851-851 | 子類 Sign and DataDisplayDevice |
| (subclass Sign DisplayArtifact) | Mid-level-ontology.kif 17119-17119 | 子類 Sign and 顯示神器 |
| appearance as argument number 2 |
|
|
| (termFormat EnglishLanguage Sign "sign") | Mid-level-ontology.kif 17121-17121 |
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|