#class_structure__classstructure  the organization of classes within a society
  supertype:  #social_organization__social_structure__social_system__structure  the people in a society considered as a system organized by a characteristic pattern of relationships; "the social organization of England and America is very different"; "sociologists have studied the changing structure of the family"
  subtype:  #caste_system  a social structure in which classes are determined by heredity
  member:  #socio-economic_class__class__clas__socialclas  people having the same social or economic status; "the working class"; "an emerging professional class"

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