Assertion: tailed porcupine | /r/CapableOf | curl up in ball
Facets:
value: to expose their spines
type: PURPOSE
value: as a last resort
type: PURPOSE
Source sentences:
text: They stamp their hind feet when excited and curl up in a ball if caught.
text: As a last resort, they will curl up into a ball so as to expose their spines on all sides.