Assertion: gopher's burrow | /r/HasProperty | 10 feet deep
Facets:
Source sentences:
text: The burrow of a gopher tortoise can be 10 feet deep.
text: These burrows can be up to ten feet deep and 40 feet long, and are as wide as the length of the tortoise that made it.
text: The burrow of a gopher tortoise can be 10 feet deep.