| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | naics.kif 11619-11622 | |
| No TPTP formula. May not be expressible in strict first order. | naics.kif 11617-11617 | 子屬性 休閒和度假營，露營地除外 and RV房車休閒車公園和休閒營地 |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 48998-48998 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 48997-48997 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 48996-48996 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners