Assertion: caribou's ground | /r/AtLocation | snow
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Reindeer have an acute sense of smell, which is very useful when the ground is covered in snow and they need to find food.
text: Animals that live in the taiga need to be hardy and adaptable: the long, cold winters mean that little food is available for much of the year and that the ground is often covered in snow.