Assertion: dugong | /r/CapableOf | give birth to single calf
Facets:
value: usually
type: TEMPORAL
value: after about one year’s gestation
type: TEMPORAL
Source sentences:
text: Dugongs have a 13-15 month gestation, and give birth to a single calf.
text: A dugong will mate once every seven years or so, and will usually give birth to a single calf, after about one year’s gestation.