Assertion: chimpanzee | /r/CapableOf | express complex emotions
Facets:
value: through sign language
type: MANNER
Source sentences:
text: Through sign language, chimpanzees express complex emotions and concepts, give logical names to objects, and engage in genuine conversation with human beings.2
text: Researchers have documented chimpanzees making and using tools, expressing complex emotions, forming bonds and friendships, and communicating using sign language.