| No TPTP formula. May not be expressible in strict first order. | Mid-level-ontology.kif 1449-1449 | Weapon of mass destruction is a subclass of weapon |
| No TPTP formula. May not be expressible in strict first order. | WMD.kif 103-103 | Biochemical weapon is a subclass of weapon of mass destruction |
| No TPTP formula. May not be expressible in strict first order. | WMD.kif 117-117 | Radioactive weapon is a subclass of weapon of mass destruction |
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