anchor.diff:  EL SALVADOR,SLV,SLV
   ELSALVADOR,SLV,SLV
   Eq Guinea,GNQ,GNQ
  +Equitorial Guinea,GNQ,GNQ
   EQUATORIAL GUINEA,GNQ,GNQ
   ERITREA,ERI,ERI
   ESP,ESP,ESP
  
positive.code: St Pierre & Miq,SPM,SPM
  St Vinc & Gren,VCT,VCT
  St Vincent + Gren.,VCT,VCT
  STP,STP,STP
  STP: SAO TOME AND PRINCIPE,STP,STP
  SUDAN,SDN,SDN
  
negative.code: Sint Maarten,NULL,MAF
  SLB,SLB,SLB
  SLB: SOLOMON ISLANDS,SLB,SLB
  Soloman Islands,SLB,SLB
  SLE,SLE,SLE
  SLE: SIERRA LEONE,SLE,SLE
  SLOVAKIA,SVK,SVK
  