anchor.diff:  "NUTS_SK032","Banskobystrický kraj","Slovakia","NUTS3"
   "NUTS_BG321","Veliko Tarnovo","Bulgaria","NUTS3"
   "NUTS_BG425","Kardzhali","Bulgaria","NUTS3"
  -"NUTS_CZ032","Plzenský kraj","Czechia","NUTS3"
  +"NUTS_CZ032","Plzenský kraj","Czech Republic","NUTS3"
   "NUTS_SK023","Nitriansky kraj","Slovakia","NUTS3"
   "NUTS_BG314","Pleven","Bulgaria","NUTS3"
   "NUTS_FRK13","Haute-Loire","France","NUTS3"
   "NUTS_LT028","Telsiu apskritis","Lithuania","NUTS3"
   "NUTS_BG412","Sofia","Bulgaria","NUTS3"
   "NUTS_BG323","Ruse","Bulgaria","NUTS3"
  -"NUTS_CZ053","Pardubický kraj","Czechia","NUTS3"
  +"NUTS_CZ053","Pardubický kraj","Czech Republic","NUTS3"
   "NUTS_SE331","Västerbottens län","Sweden","NUTS3"
   "NUTS_BG341","Burgas","Bulgaria","NUTS3"
   "NUTS_FRI31","Charente","France","NUTS3"
  
positive.code: "NUTS_DK042","Østjylland","Denmark","NUTS3"
  "NUTS_FI1D2","Pohjois-Savo","Finland","NUTS3"
  "NUTS_BG422","Haskovo","Bulgaria","NUTS3"
  "NUTS_CZ020","Stredoceský kraj","Czechia","NUTS3"
  "NUTS_CZ052","Královéhradecký kraj","Czechia","NUTS3"
  "NUTS_BG415","Kyustendil","Bulgaria","NUTS3"
  "NUTS_FI1D3","Pohjois-Karjala","Finland","NUTS3"
  "NUTS_CZ071","Olomoucký kraj","Czechia","NUTS3"
  "NUTS_SE311","Värmlands län","Sweden","NUTS3"
  "NUTS_DK050","Nordjylland","Denmark","NUTS3"
  "NUTS_DK011","Byen København","Denmark","NUTS3"
  
negative.code: "NUTS_PT16E","Região de Coimbra","Portugal","NUTS3"
  "NUTS_BE351","Arr. Dinant","Belgium","NUTS3"
  "NUTS_CH025","Jura","Switzerland","NUTS3"
  "NUTS_CZ063","Kraj Vysocina","Czech Republic","NUTS3"
  "NUTS_FRK21","Ain","France","NUTS3"
  "NUTS_FI1D5","Keski-Pohjanmaa","Finland","NUTS3"
  "NUTS_CH063","Schwyz","Switzerland","NUTS3"
  