anchor.diff:  "NUTS_ITF6","Calabria","Italy","NUTS2"
   "NUTS_ITG1","Sicilia","Italy","NUTS2"
   "NUTS_ITG2","Sardegna","Italy","NUTS2"
  -"NUTS_CY00","Kypros","Cyprus","NUTS2"
  -"NUTS_LV00","Latvija","Latvia","NUTS2"
   "NUTS_LT01","Sostines regionas","Lithuania","NUTS2"
   "NUTS_LT02","Vidurio ir vakaru Lietuvos regionas","Lithuania","NUTS2"
   "NUTS_LT00","Lietuva (NUTS 2013)","Lithuania","NUTS2"
  -"NUTS_LU00","Luxembourg","Luxembourg","NUTS2"
   "NUTS_HU11","Budapest","Hungary","NUTS2"
   "NUTS_HU12","Pest","Hungary","NUTS2"
   "NUTS_HU10","Közép-Magyarország (NUTS 2013)","Hungary","NUTS2"
  
positive.code: "NUTS_AL01","Veri","Albania","NUTS2"
  "NUTS_AL02","Qender","Albania","NUTS2"
  "NUTS_AL03","Jug","Albania","NUTS2"
  "NUTS_FRY30","Guyane","France","NUTS3"
  "NUTS_FI200","Åland","Finland","NUTS3"
  "NUTS_BG312","Montana","Bulgaria","NUTS3"
  "NUTS_BG332","Dobrich","Bulgaria","NUTS3"
  "NUTS_FRK12","Cantal","France","NUTS3"
  
negative.code: "NUTS_PT16","Centro (PT)","Portugal","NUTS2"
  "NUTS_PT17","Área Metropolitana de Lisboa","Portugal","NUTS2"
  "NUTS_PT18","Alentejo","Portugal","NUTS2"
  "NUTS_RO11","Nord-Vest","Romania","NUTS2"
  "NUTS_RO12","Centru","Romania","NUTS2"
  "NUTS_RO22","Sud-Est","Romania","NUTS2"
  "NUTS_RO31","Sud - Muntenia","Romania","NUTS2"
  "NUTS_RO32","Bucuresti - Ilfov","Romania","NUTS2"
  