Assertion: marmot's burrow | /r/ObjectUse | used for hibernation
Facets:
value: during the winter
type: TEMPORAL
Source sentences:
text: larger more complex burrows are used for hibernation and birthing and may have numerous passages and exits.
text: Burrows are multi-purpose structures, used for hibernation, protection from bad weather and predators, and to raise newborn pups.
text: The burrow is used for hibernation during the winter, as well as for general sleeping and the raising of young during the spring and summer months.