Assertion: electric toothbrush's head | /r/HasProperty | g2 optimal gum care
Facets:
value: automatically
type: MANNER
Source sentences:
text: The brush heads that pair with those modes automatically are the C2 Optimum Plaque Control, G2 Optimal Gum Care and W2 Optimal White, but you don’t get all of these in the package, so you’ll have to buy them separately if you want to try them.