Assertion: aspen's root | /r/HasProperty | underground
Facets:
value: usually
type: TEMPORAL
value: in a ball shaped region
type: LOCATION
value: almost always
type: TEMPORAL
Source sentences:
text: The roots of a tree are almost always underground, usually in a ball shaped region centered under the trunk, and extending no deeper than the tree is high.
text: The roots of a tree are usually under the ground.