Assertion: cave's stalagmite | /r/HasProperty | speleothem
Facets:
value: often
type: TEMPORAL
Source sentences:
text: The most common stalagmites are speleothems, which usually form in limestone caves.
text: Stalactites, stalagmites, and other cave formations (often called "speleothems") are examples of limestone that formed through evaporation.
text: Stalagmites are speleothems which stick up from the floor of a cave.