| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5616-5617 | |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5615-5615 | Softwood is a subclass of wood product |
| appearance as argument number 2 |
|
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| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5490-5490 | Hardwood is disjoint from softwood |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5489-5489 | Hardwood is exhaustively partitioned into softwood |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5628-5628 | Cedar wood is a subclass of softwood |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5638-5638 | Fir wood is a subclass of softwood |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5648-5648 | Larch wood is a subclass of softwood |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5668-5668 | PineWood is a subclass of softwood |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5658-5658 | Spruce wood is a subclass of softwood |
| No TPTP formula. May not be expressible in strict first order. | domainEnglishFormat.kif 65536-65536 | Spruce wood is a subclass of softwood |
| antecedent |
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| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5619-5626 |
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