Assertion: mustard gas | /r/ObjectUse | used in high concentrations
Facets:
value: as an area-denial weapon
type: MANNER
Source sentences:
text: Towards the end of World War I, mustard agent was used in high concentrations as an area-denial weapon that forced troops to abandon heavily contaminated areas.
text: Towards the end of World War I, mustard agent was used in high concentrations as an area-denial weapon that forced troops to abandon heavily contaminated areas.
text: Towards the end of World War I, mustard agent was used in high concentrations as an area-denial weapon that forced troops to abandon heavily-contaminated areas.