Assertion: sand dollar's spine | /r/HasProperty | reddish-purple
Facets:
Source sentences:
text: species are generally sub-circular, measuring approximately 2–4 inches across, and are coated with spines that are purple, reddish-purple or brown in color.
text: species are generally sub-circular, measuring approximately 2-4 inches across, and are coated with spines that are purple, reddish-purple or brown in color.