Assertion: black vulture's egg | /r/HasProperty | incubated by parent
Facets:
value: for 38 - 45 days
type: TEMPORAL
Source sentences:
text: One to 3 whitish, blotched eggs are incubated by both parents; the young are fed by both parents by regurgitation.
text: The female lays 2 eggs that are incubated by both parents for 38 - 45 days.
text: The clutch contains one or two eggs, which are incubated by both parents over the course of 54 to 56 days.