Assertion: chimpanzee laughter | /r/CapableOf | happen in different social context
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: But chimpanzee laughter usually happens in a different social context than it does in humans: chimps laugh almost exclusively during physical contact, or when contact is imminent during chasing and wrestling games, whereas most adult human laughter occurs during conversation without touching being involved, according to Robert Provine, a psychologist at the University of Maryland, who is an authority on laughter.