Assertion: american crow's call | /r/CapableOf | represent formal warning
Facets:
value: for food
type: TRANSITIVE-OBJECT
value: for predators
type: TRANSITIVE-OBJECT
value: for social bonding
type: PURPOSE
value: for the death of another
type: PURPOSE
Source sentences:
text: Each call represents a formal warning for social bonding, predators, food, or the death of another.