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No TPTP formula. May not be expressible in strict first order. Merge.kif 1477-1477 Natural language is a subclass of human language
No TPTP formula. May not be expressible in strict first order. Languages.kif 12647-12647 Language family is a subclass of natural language
No TPTP formula. May not be expressible in strict first order. Languages.kif 14594-14594 Chinese language is a subclass of natural language


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