Assertion: sand dollar's spine | /r/HasProperty | gray
Facets:
Source sentences:
text: These sand dollars grow to about 4 inches across and have gray, purple or blackish spines.
text: These sand dollars grow to about 4 inches across and have gray, purple or blackish spines.
text: These sand dollars grow to about 4 inches across and have gray, purple or blackish spines.
text: These sand dollars grow to about 4 inches across and have gray, purple or blackish spines.