Assertion: woodpecker's cavity | /r/CapableOf | widen at bottom
Facets:
value: to make room
type: PURPOSE
value: to make the incubating adult
type: PURPOSE
value: to make the incubating bird
type: PURPOSE
Source sentences:
text: The cavity widens at bottom to make room for eggs and the incubating adult.
text: Cavities are 6-12 inches deep and widen toward the bottom to make room for eggs and the incubating bird.
text: The cavity widens at bottom to make room for eggs and the incubating adult.