Assertion: howler monkey's howl | /r/AtLocation | dawn
Facets:
value: at dusk
type: TEMPORAL
value: primarily
type: DEGREE
Source sentences:
text: Calls include woofs, grunts, barks, and howls, with the characteristic howls occurring at dusk and dawn, and in response to any sort of disturbance (Reid 1997).
text: Howling occurs primarily at dawn and at dusk.