Assertion: gorilla's silverback | /r/CapableOf | scare other animals
Facets:
value: by standing on their back legs
type: MANNER
Source sentences:
text: The group is led by a single male, called silverbacks because of the distinctive silvery fur growing on their back and hips when they mature at least 12 years olds , these silverback scares away other animals by standing on their back legs they decide all activities within their troop.