Assertion: cave's stalagmite | /r/CapableOf | become saturated
Facets:
value: gradually
type: MANNER
value: with calcium carbonate
type: OTHER
Source sentences:
text: Stalactites and stalagmites form when rainwater falling directly on to the limestone percolates down through the rock, gradually becoming saturated with calcium carbonate as it dissolves the limestone through which it passes.