Assertion: tortoise's shell | /r/HasProperty | black
Facets:
value: usually
type: DEGREE
value: with distinctive growth lines
type: OTHER
Source sentences:
text: The top shells are brown, gray, or black, often with distinctive growth lines, while the shell underneath is lighter.
text: Shells are commonly colored brown, black, or olive green.
text: Coloration varies, but the shell is usually a ruddy brown or black, fading to yellow between the scutes, and the body is straw-yellow and brown depending on the subspecies.