Assertion: aspen's bark | /r/CapableOf | become rough
Facets:
value: in old trees
type: LOCATION
value: with a gray shade to it
type: OTHER
Source sentences:
text: While the bark on the largest specimens of quaking aspen will become rough and furrowed, with a gray shade to it, most develop a whitish-green bark.
text: Chestnut tree has reddish-brown or grey bark that is smooth in young trees but becomes rough and furrowed in old trees.