Assertion: gorilla | /r/CapableOf | learn sign language
Facets:
Source sentences:
text: Gorillas are able to learn and apply sign language to communicate with people.
text: They can learn sign language and know the meaning of more than 2,000 words.
text: Some gorillas have even been able to learn sign language and communicate with people.
text: Some gorillas who live in the zoo have learned sign language.