anchor.diff:  Toronto,Canada,43.65,-79.38,white,2,,,,
   Sheffield,UK,53.38,-1.47,black,5,,,,
   Sheffield,UK,53.38,-1.47,white,2,,,,
  -Amsterdam,Netherlands,53.37,4.89,black,5,,,,
  -Amsterdam,Netherlands,53.37,4.89,white,2,,,,
   Rio,Brazil,-22.91,-43.17,black,5,,,,
   Rio,Brazil,-22.91,-43.17,white,2,,,,
   Hampshire,UK,51.08,-1.216,black,5,,,,
  
positive.code: Dubai,Dubai,25.2,55.27,white,2,,,,
  Leeds,UK,53.8,-1.55,black,5,,,,
  Leeds,UK,53.8,-1.55,white,2,,,,
  Manchester,UK,53.48,-2.24,black,5,,,,
  Manchester,UK,53.48,-2.24,white,2,,,,
  Osaka,Japan,34.69,135.5,black,5,,,,
  Osaka,Japan,34.69,135.5,white,2,,,,
  Paris,France,48.86,2.35,black,5,,,,
  
negative.code: Vienna,Austria,48.2,16.37,black,5,,,,
  Vienna,Austria,48.2,16.37,white,2,,,,
  Riyadh,Saudi Arabia,24.4,46.46,black,5,,,,
  Riyadh,Saudi Arabia,24.4,46.46,white,2,,,,
  Aberdeen,Scotland,57.8,2.5,black,5,,,,
  Aberdeen,Scotland,57.8,2.5,white,2,,,,
  Birmingham,UK,52.29,1.53,black,5,,,,
  Birmingham,UK,52.29,1.53,white,2,,,,
  Madrid,Spain,40.25,3.42,black,5,,,,
  Madrid,Spain,40.25,3.42,white,2,,,,
  Brasilla,Brazil,47.51,15.49,black,5,,,,
  Brasilla,Brazil,47.51,15.49,white,2,,,,