(subclass NerveAgent ChemicalAgent) | WMD.kif 558-558 | Nerve agent is a subclass of chemical agent |
(subclass GSeriesNerveAgent NerveAgent) | WMD.kif 567-567 | G series nerve agent is a subclass of nerve agent |
(subclass VSeriesNerveAgent NerveAgent) | WMD.kif 592-592 | V series nerve agent is a subclass of nerve agent |