#loam  a rich soil consisting of a mixture of sand and clay and decaying organic materials
  supertype:  #dirt__soil  the part of the earth's surface consisting of humus and disintegrated rock
  subtype:  #regur_soil__regursoil__regur  a rich black loam of India
  subtype:  #chernozemic_soil__chernozemicsoil  a rich black loam of Russia

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