Assertion: gorilla's troop | /r/CapableOf | call silverback
Facets:
value: often
type: TEMPORAL
value: because of the swath of silver hair
type: CAUSE
Source sentences:
text: Troops are led by one dominant, older adult male, often called a silverback because of the swath of silver hair that adorns his otherwise dark fur.
text: Troops are led by one dominant, older adult male, often called a silverback because of the swath of silver hair that adorns his otherwise dark fur.