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KB:
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BirchWood
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| appearance as argument number 1 |
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| (subclass BirchWood Hardwood) | Economy.kif 5662-5662 | Birch wood is a subclass of hardwood |
| (documentation BirchWood EnglishLanguage "BirchWood is made from logs of Birch trees.") | Economy.kif 5663-5663 | Birch wood is a subclass of hardwood |
| appearance as argument number 2 |
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| (relatedInternalConcept BirchTree BirchWood) | Geography.kif 8116-8116 | Birch tree is internally related to Birch wood |
| (termFormat EnglishLanguage BirchWood "Birch wood") | domainEnglishFormat.kif 64543-64543 | Birch tree is internally related to Birch wood |
| antecedent |
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| (=> (and (equal ?W (OrganicObjectFn ?S)) (subclass ?W BirchWood) (subclass ?S PlantStem)) (initialPart ?S BirchTree)) |
Economy.kif 5665-5670 | If equal X and Object made from Y, X is a subclass of Birch wood, and Y is a subclass of plant stem, then every Y is initially part of a Birch tree |