Assertion: cave | /r/CapableOf | form in marble
Facets:
value: rarely
type: DEGREE
Source sentences:
text: Such caves form in rock that is soluble; most occur in limestone, but they can also form in other rocks including chalk, dolomite, marble, salt, and gypsum.
text: Caves rarely form in this limestone because it is so thinly bedded that the ceilings would collapse.