Assertion: porcupine | /r/Causes | warning noise
Facets:
value: to let
type: PURPOSE
Source sentences:
text: Along with the raising of the quills, porcupines clatter their teeth causing warning noise to let predators know not to come closer.
text: Along with the raising of the quills, porcupines clatter their teeth causing warning noise to let predators know not to come closer.