Assertion: emperor's egg | /r/HasProperty | incubated by parent
Facets:
value: for about two months
type: TEMPORAL
value: for up to 40 days
type: TEMPORAL
Source sentences:
text: The female gentoo penguin lays two eggs which are incubated by both parents for just over a month when only one of the eggs will usually hatch.
text: The eggs are incubated by both parents for up to 40 days, when only one of the eggs will usually hatch.
text: The female king penguin lays two eggs which are incubated by both parents for about two months, when only one of the eggs will usually hatch.