Assertion: dolphin | /r/CapableOf | sleep with half of their brains
Facets:
value: at a time
type: TEMPORAL
value: at once
type: TEMPORAL
Source sentences:
text: Dolphins sleep with only half of their brains at once while the other remains fully awake, a type of rest known as unihemispheric slow wave sleep.
text: Dolphins sleep with one half of the brain at a time, and with one eye closed.