en subterranean river (n)

An English term in ConceptNet 5.8

Source: OpenCyc 2012
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subterranean river is a type of…

Links to other resources

  • sw.opencyc.org /2012/05/10/concept/en/Subterranean_river
  • sw.opencyc.org /2012/05/10/concept/en/River_Underground
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