Assertion: chemical weapon | /r/ObjectUse | used in war
Facets:
value: widely
type: DEGREE
value: systematically
type: MANNER
Source sentences:
text: But chemical weapons have still been used in wars since then.
text: The greatest killer of all the chemical weapons used in the war was phosgene gas.
text: It was the first time that chemical weapons were widely used in warfare.
text: Chemical weapons were first used systematically in this war.
text: I saw the rise of chemical weapons being used on the battlefield.
text: Nevertheless, in the following years, chemical weapons were used in several, mainly colonial, wars where one side had an advantage in equipment over the other.
text: Russian chemical weapons agent production capabilities equated to only 2.4% (3,650 of 150,000 tons) of the aggregate amount produced by all combatants, and 4.2% of the total amount of chemical weapons used in the war.  
text: It was the first time that chemical weapons were widely used in warfare.