Assertion: cave's formation | /r/CapableOf | erode into unclimbable cliffs
Facets:
value: to yellow-gray sandstones
type: TRANSITIVE-OBJECT
value: almost
type: DEGREE
Source sentences:
text: This formation erodes into almost unclimbable cliffs and escarpments of whitish to yellow-gray sandstones with comparatively thin interbedded layers of shale and mudstone.