BodySubstance | Extracellular material and mixtures of cells and extracellular material that are produced, excreted or accreted by the body. Included here are Substances such as saliva, dental enamel, sweat, and gastric acid | Substance | (=> (instance ?OBJ CorpuscularObject) (exists (?SUBSTANCETYPE1 ?SUBSTANCETYPE2 ?SUBSTANCE1 ?SUBSTANCE2) (and (subclass ?SUBSTANCETYPE1 Substance) (subclass ?SUBSTANCETYPE2 Substance) (instance ?SUBSTANCE1 ?SUBSTANCETYPE1) (instance ?SUBSTANCE2 ?SUBSTANCETYPE2) (material ?SUBSTANCE1 ?OBJ) (material ?SUBSTANCE2 ?OBJ) (not (equal ?SUBSTANCE1 ?SUBSTANCE2)))))
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