Assertion: humpback whale's calf | /r/HasProperty | weaned
Facets:
value: between 1.5 and 2.0 years
type: TEMPORAL
Source sentences:
text: The ‘baby’ stage runs from birth until the calf is weaned, during which time the calf frequently nurses on the mother
text: The calves are weaned between 1.5 and 2.0 years, but can remain with their mothers for up to 5 years.