Assertion: orangutan's orangutan | /r/CapableOf | gain proficiency
Facets:
value: by the time
type: TEMPORAL
Source sentences:
text: From six months of age onwards, orangutans practice nest-building and gain proficiency by the time they are three years old.
text: From six months of age onwards, orangutans practice nest-building and gain proficiency by the time they are three years old.
text: From six months of age onwards, orangutans practice nest-building and gain proficiency by the time they are three years old.
text: From six months of age onwards, orangutans practice nest-building and gain proficiency by the time they are three years old.