#Four_Hundred  the exclusive social set of a city
  supertype:  #set.social_group__circle__band__lot  an unofficial association of people or groups; "the smart set goes there"; "they were an angry lot"
  member of:  #high_society__society__beau_monde__smart_set__bon_ton  the fashionable elite

No statement uses or specializes #Four_Hundred; click here to add one.