anchor.diff:  TONGA,TON,TON
   Trin & Tobago,TTO,TTO
   Trinidad + Tobago,TTO,TTO
  +Trinidad-Tobago,TTO,TTO
   TRINIDAD AND TOBAGO,TTO,TTO
   TTO,TTO,TTO
   TTO: TRINIDAD AND TOBAGO,TTO,TTO
  
positive.code: PAN: PANAMA,PAN,PAN
  PANAMA,PAN,PAN
  Papua New Guin,PNG,PNG
  PAPUA NEW GUINEA,PNG,PNG
  PARAGUAY,PRY,PRY
  PER,PER,PER
  
negative.code: CAN: CANADA,CAN,CAN
  CANADA,CAN,CAN
  CAPE VERDE,CPV,CPV
  "Cape Verde, Republic of",CPV,CPV
  Caribbean Regional,*CB,*CB
  Caucasus Regional,*CC,*CC
  Cayman Is,CYM,CYM
  