Assertion: electric toothbrush | /r/CapableOf | make movement
Facets:
Source sentences:
text: Electric toothbrushes can be classified according to the frequency (speed) of their movements as power, sonic or ultrasonic toothbrushes, depending on whether they make movements that are below, in or above the audible range (20–20,000 Hz or 2400–2,400,000 movements per minute), respectively.
text: Electric toothbrushes are battery powered and, depending on the design and brand, they work in several motions.