(subclass WeaponOfMassDestruction Weapon) | Mid-level-ontology.kif 1449-1449 | Weapon of mass destruction is a subclass of weapon |
(subclass BiochemicalWeapon WeaponOfMassDestruction) | WMD.kif 103-103 | Biochemical weapon is a subclass of weapon of mass destruction |
(subclass RadioactiveWeapon WeaponOfMassDestruction) | WMD.kif 117-117 | Radioactive weapon is a subclass of weapon of mass destruction |