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No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 8582-8582 Hydrocarbon is a subclass of organic compound
No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 9181-9181 Rubber is a subclass of hydrocarbon
No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 9194-9194 Plastic is a subclass of hydrocarbon


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