| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Geography.kif 6886-6886 | 污染鱼类库存问题 是 环境问题 的 instance |
| appearance as argument number 2 |
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|
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 46557-46557 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 46556-46556 | |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 46555-46555 |
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Sigma version 3.0 is open source software produced by Articulate Software and its partners