Assertion: grenade | /r/HasProperty | filled with gunpowder
Facets:
Source sentences:
text: Originally they were just hollow metal balls filled with gunpowder.
text: The first grenades were small iron spheres filled with gunpowder fused with a length of slow-match, roughly the size of a baseball.
text: The first grenades were hollow iron balls filled with gunpowder and ignited by a slow burning fuse rolled in dampened gunpowder and dried.
text: Originally they were hollow iron balls filled with gunpowder and ignited by a slow burning match.