Assertion: boysenberry's blackberry | /r/HasProperty | black
Facets:
value: sometimes
type: TEMPORAL
value: in color
type: OTHER
Source sentences:
text: Harvest begins when the first blackberries are a dull dark blue or black in color.
text: In various parts of the United States, wild blackberries are sometimes called "black-caps", a term more commonly used for black raspberries, Rubus occidentalis.