Assertion: mustard gas | /r/ObjectUse | used in several wars
Facets:
value: since world war i
type: TEMPORAL
value: against people
type: TRANSITIVE-OBJECT
value: in the first world war
type: TEMPORAL
Source sentences:
text: Since World War I, mustard agent has been used in several wars or other conflicts, usually against people who cannot retaliate in kind:
text: When used in warfare, they have a color yellowish to brown.
text: First used in battle in the first world war, mustard gas causes the skin to break out in painful blisters, irritates eyes and causes eyelids to swell up, temporarily blinding its victims.
text: Mustard gas was first used in World War I, but was used in the war
text: While it had been synthesized in 1860, mustard gas was first used in warfare in September 1917.
text: Since World War I, mustard agent has been used in several wars or other conflicts, usually against people who cannot retaliate in kind:
text: Since World War I, mustard agent has been used in several wars or other conflicts, usually against people who cannot retaliate in kind:
text: When used in warfare, they have a color yellowish to brown.