Assertion: gibbon's call | /r/AtLocation | response
Facets:
value: to predators
type: CAUSE
value: to neighbouring groups
type: TRANSITIVE-OBJECT
value: during stressful situations
type: TEMPORAL
value: at night
type: TEMPORAL
Source sentences:
text: A "wa-hoo" call is made in response to predators or neighbouring groups at night and during stressful situations.