Assertion: boa constrictor | /r/HasProperty | gray
Facets:
value: usually
type: DEGREE
Source sentences:
text: Boa constrictors are gray, cream or brown with dark saddle shaped bands.
text: Boa constrictor is usually grey, green or creamy-colored.
text: Boa constrictors are usually yellowish or grayish, with a pattern of dark brown dorsal saddles; the tail is often reddish-orange.