#waterwheel__water_wheel__waterwheel  a wheel that rotates by direct action of water; a simple turbine
  supertype:  #wheel  a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
  subtype:  #millwheel  #noria
  part of:  #water_mill
  part:  #bucket__pail  a roughly cylindrical that is vessel open at the top

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