Assertion: gorilla's baby | /r/HasProperty | single
Facets:
Source sentences:
text: Female gorilla give birth a single baby or rarely twins, after 4 or 5 years whose mortality rate is only 40%.
text: A female mountain gorilla generally gives birth to a single baby following a 9 month pregnancy.
text: Female mountain gorillas give birth to a single baby after a gestation period (the time a mother carries the baby before giving birth) of nine months, just like humans.