Assertion: crocodile's skin | /r/HasProperty | dark gray
Facets:
value: with spots
type: OTHER
Source sentences:
text: The skin on their backs is dark gray, and their bellies are white or light gray.
text: Nile crocodiles have thick, armored skin that is dark bronze with black stripes and spots on the back, greenish-yellow side stripes, and yellow scales on the belly.