Assertion: grenade's body | /r/HasProperty | embossed with vertical letters
Facets:
value: on one side
type: OTHER
value: in a column
type: LOCATION
value: on the knobs
type: LOCATION
Source sentences:
text: Its body was embossed with the vertical letters R, D and X on the knobs in a column on one side (because it was originally designed to be for an HE grenade with a more powerful RDX filler).