| (subclass OrganicCompound CompoundSubstance) | Mid-level-ontology.kif 8559-8559 | |
| (subclass Urea OrganicCompound) | Mid-level-ontology.kif 8572-8572 | |
| (subclass Steroid OrganicCompound) | Mid-level-ontology.kif 8578-8578 | |
| (subclass Hydrocarbon OrganicCompound) | Mid-level-ontology.kif 8583-8583 | |
| (subclass Alcohol OrganicCompound) | Mid-level-ontology.kif 8612-8612 | |
| (subclass AminoAcid OrganicCompound) | Mid-level-ontology.kif 8696-8696 | |
| (subclass WoodProduct OrganicCompound) | Economy.kif 5225-5225 |
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