Assertion: gun | /r/CapableOf | emit a beam of light
Facets:
Source sentences:
text: These early light gun games, like modern laser tag, used small targets (usually moving) onto which a light-sensing tube was mounted; the player used a gun (usually a rifle) that emitted a beam of light when the trigger was pulled.
text: The name leads one to believe that the gun itself emits a beam of light, but in fact most light guns actually receive light through a photodiode in the gun barrel.