Assertion: tear gas | /r/HasProperty | banned by international treaty
Facets:
value: from use in warfare
type: PURPOSE
value: in warfare
type: LOCATION
value: famously
type: MANNER
value: under the chemical weapons convention
type: OTHER
Source sentences:
text: Tear gas is commonly used by police to control riots, yet it's banned by international treaty in warfare under the Chemical Weapons Convention, which went into effect in 1997.
text: Tear gas is famously banned from use in warfare by several international treaties.