Assertion: herring's egg | /r/HasProperty | incubated by parent
Facets:
value: after about 40-42 days
type: TEMPORAL
Source sentences:
text: Puffins mate for life and the female Puffin lays a single white egg that is incubated by both parents until it hatches up to six weeks later in the burrow, covered in medium-brownish feathers.
text: Egg is incubated by both parents and hatches after about 40-42 days.