#peat_bog__bog  wet spongy ground of decomposing vegetation; has poorer drainage than a swamp; soil is unfit for cultivation but can be cut and dried and used for fuel
  supertype:  #wetland  a low area where the land is saturated with water
  subtype:  #mire__quagmire__morass  a soft wet area of low-lying land that sinks underfoot
  subtype:  #slough.peat_bog  a hollow filled with mud

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