anchor.diff:  Sozopol 
   Burgas
   Kameno
  -Blagoevgrad
  -Burgas
  -Dobrich 
  -Gabrovo 
  -Khaskovo
  -Kyrdzhali
  -Kyustendil 
  -Lovech
   Montana
  -Pazardzhik 
  -Pernik
  -Pleven
   Plovdiv 
   Razgrad
  -Ruse
  -Shumen
  -Silistra
  -Sliven
  -Smolyan 
  -Sofiya
   Sofiya-Grad
  -Stara Zagora 
  -Tyrgovishte
  -Varna 
   Veliko Tyrnovo 
  -Vidin 
   Vratsa
  -Yambol
   Vylchidol
   Topolovgrad
   Nadezhda
   Rodopi
   Rakitovo
   Botevgrad
  -Plovdiv 
   Svoge 
   Roman 
   Madan 
  
positive.code: Svishtov
  Vylchedrum 
  Ivanovo 
  Sliven
  Sliven
  Rakovski
  Sandanski
  
negative.code: Karnobat
  Dolna Banya
  Ruse
  Bratya Daskalovi 
  Satovcha
  Aytos 
  Khaskovo
  Dospat
  Dimitrovgrad 
  