Assertion: electric toothbrush's brush head | /r/CapableOf | do the work
Facets:
Source sentences:
text: With an electric toothbrush, you tend to get a better clean because the powerful brush head is doing the work for you.
text: The brush head does all the work for you.
text: Although with an electric toothbrush there is no magic button that can place the brush in the right position, it simplifies things for you because the brush head does the work and the timer lets you know how long you have been brushing, which allows you to focus on cleaning your teeth right up to the gumline.