| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 1643-1643 | 子類 二級公路 and 巷道 |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 51771-51771 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 51770-51770 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 51769-51769 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners