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| (domainSubclass birthday 2 Day) | Mid-level-ontology.kif 24233-24233 | |
| (domainSubclass daylightHoursInterval 2 Day) | Weather.kif 851-851 | |
| (domainSubclass daylightHoursTotal 2 Day) | Weather.kif 861-861 | |
| (domainSubclass weddingAnniversary 2 Day) | Mid-level-ontology.kif 24192-24192 |
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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