anchor.diff:  "city_4322608","Venâncio Aires","4322608","base.state_br_rs","base.br"
   "city_4322707","Vera Cruz","4322707","base.state_br_rs","base.br"
   "city_4322806","Veranópolis","4322806","base.state_br_rs","base.br"
  -"city_4322855","Vespasiano Correa","4322855","base.state_br_rs","base.br"
  +"city_4322855","Vespasiano Corrêa","4322855","base.state_br_rs","base.br"
   "city_4322905","Viadutos","4322905","base.state_br_rs","base.br"
   "city_4323002","Viamão","4323002","base.state_br_rs","base.br"
   "city_4323101","Vicente Dutra","4323101","base.state_br_rs","base.br"
  
positive.code: "city_3521101","Ipeúna","3521101","base.state_br_sp","base.br"
  "city_3521150","Ipiguá","3521150","base.state_br_sp","base.br"
  "city_3521200","Iporanga","3521200","base.state_br_sp","base.br"
  "city_1706001","Couto de Magalhães","1706001","base.state_br_to","base.br"
  "city_3521309","Ipuã","3521309","base.state_br_sp","base.br"
  "city_3521408","Iracemápolis","3521408","base.state_br_sp","base.br"
  "city_3521507","Irapuã","3521507","base.state_br_sp","base.br"
  
negative.code: "city_5214002","Mozarlândia","5214002","base.state_br_go","base.br"
  "city_5214051","Mundo Novo","5214051","base.state_br_go","base.br"
  "city_5214101","Mutunópolis","5214101","base.state_br_go","base.br"
  "city_5214408","Nazária","5214408","base.state_br_go","base.br"
  "city_5214507","Nerópolis","5214507","base.state_br_go","base.br"
  "city_5214606","Niquelândia","5214606","base.state_br_go","base.br"
  "city_5214705","Nova América","5214705","base.state_br_go","base.br"
  