Assertion: rodent's incisor | /r/CapableOf | grind against each other
Facets:
Source sentences:
text: As the incisors grind against each other, the softer dentine on the rear of the teeth wears away, leaving the sharp enamel edge shaped like the blade of a chisel.
text: During gnawing, as the incisors grind against each other, they wear away the softer dentine, leaving the enamel edge as the blade of a chisel.