Assertion: cave | /r/HasProperty | formed under phreatic conditions
Facets:
value: below the local water table
type: LOCATION
Source sentences:
text: The cave was formed under phreatic conditions i.e. below the local water table, but lowering base levels to which the subterranean drainage was flowing resulted in some passages being abandoned by the river, and there is evidence of a number of abandoned resurgences.