Assertion: box cutter | /r/ObjectUse | used as weapon
Facets:
value: in hi-jacking airplanes
type: LOCATION
value: in the september
type: TEMPORAL
Source sentences:
text: The 9-11 commission report stated passengers in cell phone calls reported knives or "box-cutters" were used as weapons (also Mace or a bomb) in hi-jacking airplanes in the September 11, 2001 terrorist attacks against the United States, though the exact design of the knives used is unknown.