Assertion: caribou | /r/CapableOf | change their sleeping pattern
Facets:
value: from one
type: OTHER
value: to an ultradian pattern
type: OTHER
value: during the arctic summer
type: TEMPORAL
Source sentences:
text: During the Arctic summer, when there is continuous daylight, reindeer change their sleeping pattern from one synchronised with the sun to an ultradian pattern in which they sleep when they need to digest food.