Assertion: caribou | /r/CapableOf | dig for food
Facets:
Source sentences:
text: The sharp-edged hooves easily break and clear the snow when caribou dig for food.
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.
text: In summer, they become soft and spongy to cross the tundra; in winter, they shrink and tense, revealing their hooves, which allow them to advance on the ice and dig for food.