Assertion: cave's feature | /r/HasProperty | cave
Facets:
value: historically
type: TEMPORAL
Source sentences:
text: When carbonate rocks dissolve, distinctive solution features develop that are characteristic of karst terrains; the more common features are springs, sinkholes, caves, and sinking or disappearing streams (fig.
text: Several features in the state fit Webster's definition of a cave as "a hollow place inside the earth" and have historically been referred to as caves.