Assertion: crab's pincer | /r/HasProperty | useful
Facets:
value: very
type: DEGREE
Source sentences:
text: The front legs of crabs are equipped with pincers that are very useful when feeding and fending off potential predators, as well as showing off during mating rituals.
text: Even, these pincers are useful to defend themselves against a predator, or a rival, when they are wooing their partners.