Assertion: porpoise's calf | /r/CapableOf | stay with its mother
Facets:
value: for two years
type: TEMPORAL
Source sentences:
text: Once the baby dolphin is born, the calf stays with its mother for about 3 years, a significant fraction of its total average life which is about 20 years.
text: Calves stay alongside their mothers up to 3 years and sometimes up to 8 years.
text: A calf will stay with its mother for two years before the cow drives it off as she prepares to have more young.
text: The calf stays with its mother until it’s about five years old.