Assertion: fox's den | /r/AtLocation | hollow trees
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Dens of gray foxes are usually located in hollow trees or logs, in crevices between and under large rocks, and in underground burrows.
text: Dens are usually located in hollow trees or logs, in crevices between and under large rocks, and in underground burrows.
text: It is more common, though, for their dens to be located in hollow trees or logs, rock piles, crevices between and under cliffs, and even in the lower forest canopy.