Assertion: black walnut's root | /r/CapableOf | extend 50 feet
Facets:
value: from the trunk
type: LOCATION
Source sentences:
text: Although the black walnut has many uses and benefits, the tree does come with a caveat: The black walnut’s roots, which may extend 50 feet or more from the trunk, exude a natural herbicide known as juglone in its roots, leaves and fruit husks.