Assertion: female hippo | /r/HasAspect | baby
Facets:
value: at a time
type: TEMPORAL
value: in every two years
type: TEMPORAL
Source sentences:
text: Female hippos can have babies after they reach sexual maturity which is around five to six years of age.
text: Every female hippo can only have one baby in every two years.
text: Female hippos have a gestation period of eight months and have only one baby at a time, according to the San Diego Zoo.