Assertion: electric toothbrush | /r/CapableOf | build in timer
Facets:
value: to prevent overbrushing includes
type: PURPOSE
Source sentences:
text: Electric toothbrushes build in timer to prevent overbrushing Includes charging glass and travel case
text: Furthermore, electric toothbrushes have built-in timers, which is perfect so that you can brush your teeth long enough to effectively eliminate plaque buildup from your teeth.