Assertion: proboscis monkey | /r/CapableOf | vocalize at least six types of call
Facets:
value: frequently
type: TEMPORAL
Source sentences:
text: Proboscis monkeys vocalize frequently and have at least six types of call; the honk, honk to infant, alarm call, threat call, infant call, and female call (Kawabe & Mano 1972; Messeri & Trombi 2000).