| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Geography.kif 6594-6595 | |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 6593-6593 | 相關的內部概念 SpruceTree and SpruceWood |
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 6592-6592 | 子類 SpruceTree and Conifers |
| appearance as argument number 2 |
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| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 65531-65531 |
| consequent |
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| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5451-5456 |
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Sigma web home Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is open source software produced by Articulate Software and its partners