| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 1677-1677 | 子類 石油產品 and 油 |
| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 1688-1688 | 子類 化石燃料 and 石油產品 |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5684-5684 | 子類 石油 and 石油產品 |
| No TPTP formula. May not be expressible in strict first order. | Economy.kif 5929-5929 | 子類 精煉石油產品 and 石油產品 |
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