Assertion: visible led | /r/ObjectUse | used in many electronic devices
Facets:
value: as indicator lamps
type: MANNER
value: on billboards
type: LOCATION
Source sentences:
text: Visible LEDs are used in many electronic devices as indicator lamps, in automobiles as rear-window and brake lights, and on billboards and signs as alphanumeric displays or even full-colour posters.