#grassland  a land where grass or grasslike vegetation grows and is the dominant form of plant life
  supertype:  piece_of_land__tract__piece_of_ground__parcel_of_land__parcel  an extended area of land
  location of:  biome
  subtype:  hayfield__meadow  a field where grass or alfalfa are grown to be made into hay
  subtype:  pasture__pastureland__grazing_land__grazingland__lea__ley  a field covered with grass or herbage and suitable for grazing by livestock
     subtype:  common_land__commons__common  a pasture subject to common use
     subtype:  cow_pasture__cowpasture  a pasture for cows
  subtype:  prairie  a treeless grassy plain
     instance:  Great_Plains
  subtype:  savanna__savannah  a flat grassland in tropical or subtropical regions
  subtype:  veld__veldt  elevated open grassland in southern Africa

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