#harvester__reaper  farm machine that gathers a food crop from the fields
  supertype:  #farm_machine  a machine used in farming
  subtype:  #reaper_binder__binder  a machine that cuts grain and binds it in sheaves
  subtype:  #combine  harvester that heads and threshes and cleans grain while moving across the field
  subtype:  #header.harvester  a machine that cuts the heads off grain and moves them into a wagon

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