Assertion: porpoise | /r/CapableOf | give birth to single calf
Facets:
value: between june
type: TEMPORAL
value: after 10 to 12 months
type: TEMPORAL
value: between september
type: TEMPORAL
Source sentences:
text: Dall's porpoises become sexually mature at 3.5 to 8 years of age and give birth to a single calf after 10 to 12 months, usually between June and September.