Assertion: mussel's shell | /r/HasProperty | purple
Facets:
value: usually
type: DEGREE
value: with radial stripes
type: OTHER
Source sentences:
text: The shells of this species are purple, blue or sometimes brown in color, occasionally with radial stripes.
text: Mytilus edulis is characterized by a smooth inequilateral shell, usually purple, blue, or dark brown, which features concentric growth lines emanating from the hinge.