Assertion: female manatee | /r/CapableOf | give birth
Facets:
value: usually
type: TEMPORAL
value: at 3 years
type: TEMPORAL
value: about once
type: TEMPORAL
Source sentences:
text: A female manatee, called a cow, can give birth about once every 3 years.
text: Female manatees usually give birth at 3 years and continue to do so every 2 – 3 years.
text: Some female African manatees are sexually mature as young as 3 years of age, and they give birth every 3 to 5 years of their estimated 30-year lifespan.