Assertion: gibbon's offspring | /r/AtLocation | the family unit
Facets:
value: for 6 to 8 years
type: TEMPORAL
Source sentences:
text: As many as four offspring may live in the family unit, but young begin to spend time away from the parents when about six years old.
text: Buff-cheeked gibbons have a relatively long gestation of 7 months, and the offspring stay with the family unit for 6 to 8 years.