| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | Geography.kif 6834-6834 | 荒漠化问题 是 环境问题 的 instance |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 19224-19224 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 19223-19223 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 19222-19222 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners