Assertion: toucan's bird | /r/CapableOf | grab each other's bills
Facets:
value: in apparent contests
type: TEMPORAL
value: to wrestle
type: PURPOSE
Source sentences:
text: Birds grab each other's bills to wrestle, or fence with their bills, probably to establish hierarchy within their group.
text: The birds are playful, grasping each other's bills in apparent contests, and tossing fruit to each other.