Assertion: wood duck | /r/HasAspect | sharp claws
Facets:
value: unlike most other ducks
type: OTHER
value: for perching in trees
type: PURPOSE
Source sentences:
text: They have sharp claws that can grip tree branches.
text: Unlike most other ducks, the wood duck has sharp claws for perching in trees and can, in southern regions, produce two broods in a single season—the only North American duck that can do so.