Assertion: grenade's type | /r/AtLocation | wwi
Facets:
Source sentences:
text: This type of Hand Grenade originated in WWI (August 1918) and contained either 1.85 oz. of TNT, 1.85 oz. of Amatol 50/50, or a filler of Trojan powder .
text: This type of Hand Grenade originated in WWI (March 1918) .