Assertion: pit | /r/HasProperty | natural phenomenon
Facets:
Source sentences:
text: According to Joe Nickell, there is no treasure; the pit is a natural phenomenon, probably a sinkhole connected to limestone passages or caverns.
text: Noted skeptic Joe Nickell has pointed out that "the pit" is just a natural sinkhole.
text: Suggestions that the pit is a natural phenomenon (accumulated debris in a sinkhole or geological fault) date to at least 1911.