Assertion: phosgene | /r/ObjectUse | used as a chemical weapon
Facets:
value: in world war i
type: TEMPORAL
value: by the germans
type: OTHER
value: notably
type: DEGREE
Source sentences:
text: Phosgene was used as a chemical weapon in World War I, first by the Germans and subsequently by French, American, and British forces.
text: Phosgene is a highly toxic gas that has been used for chemical warfare.
text: Phosgene was used as a chemical weapon in World War I, first by the Germans and subsequently by French, American, and British forces.
text: Phosgene (Cl2CO) is a poisonous gas that was used as a chemical weapon during World War I, and it is a potential agent for chemical terrorism.
text: Phosgene, notably used as a chemical weapon during World War I, is also used as an industrial reagent and building block in synthesis of pharmaceuticals and other organic compounds.