Assertion: okapi | /r/CapableOf | become mature
Facets:
value: sexually
type: MANNER
value: at around two years of age
type: TEMPORAL
Source sentences:
text: They become sexually mature at around 2 to 3 years of age.
text: Longevity in the wild is unknown, but okapi typically live 15-30 years in captivity, becoming sexually mature at around two years of age.