| appearance as argument number 1 |
|
| No TPTP formula. May not be expressible in strict first order. | naics.kif 821-824 | |
| No TPTP formula. May not be expressible in strict first order. | naics.kif 819-819 | Construction sand and gravel mining is a subattribute of sand gravel clay and ceramic and refractory minerals mining and quarrying |
| appearance as argument number 2 |
|
|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 16812-16812 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 16811-16811 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 16810-16810 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners