Assertion: mk grenade | /r/ObjectUse | used by the u.s. military
Facets:
value: during world war i. 44 million
type: TEMPORAL
Source sentences:
text: The Mk 2 grenade replaced the failed Mk 1 grenade used by the U.S. military during World War I. 44 million were ordered and more than 21 million were completed (it was possible to convert Mk 1 grenade bodies to the Mk 2 configuration) before the war ended, but few reached American troops overseas.