Assertion: trailing blackberry | /r/HasProperty | vigorous
Facets:
Source sentences:
text: Trailing blackberries are vigorous and crown forming, require a trellis for support, and are less cold hardy than the erect or semi-erect blackberries.
text: Trailing blackberries are vigorous and crown forming, require a trellis for support, and are less cold hardy than the erect or semi-erect blackberries.