Assertion: willow's bark | /r/HasProperty | furrowed
Facets:
value: into shaggy plates
type: OTHER
value: at maturity
type: TEMPORAL
value: heavily
type: DEGREE
Source sentences:
text: Black willows have heavily furrowed, dark brown, gray or black bark, which is how the tree got its common name.
text: Gray-brown bark is furrowed into shaggy plates at maturity.