| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Geography.kif 6880-6880 | Population migration issue is an instance of environmental issue |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 46675-46675 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 46674-46674 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 46673-46673 |
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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