anchor.diff:  Ulsan,35.5383773,129.3113596,South Korea,Asia
   Yongin,37.2410864,127.1775537,South Korea,Asia
   Pekanbaru,0.5070677,101.4477793,Sumatra,Asia
  -Quezon City,14.6760413,121.0437003,Philippines,Asia Pacific
  -Quito,-0.1806532,-78.4678382,Philippines,Asia Pacific
  -Santo Domingo,18.4860575,-69.9312116999999,Dominican Republic,Caribbean
  +Quezon City,14.6760413,121.0437003,Philippines,South Asia
  +Quito,-0.1806532,-78.4678382,Philippines,South Asia
  +Santo Domingo,18.4860575,-69.9312117,Dominican Republic,Caribbean
   Puerto Rico,18.220833,-66.590149,Puerto Rico US,Caribbean
  -Dominican Republic,18.735693,-70.162651,Dominican Republic,Carribean
  -Guatemala,15.783471,-90.2307589999999,Guatemala,Central America
  +Dominican Republic,18.735693,-70.162651,Dominican Republic,Caribbean
  +Guatemala,15.783471,-90.230759,Guatemala,Central America
   Guatemala City,14.6349149,-90.5068824,Guatemala,Central America
   Panama,8.537981,-80.782127,Panama,Central America
   Adelaide,-34.9284989,138.6007456,Australia,Down Under
  
positive.code: San Francisco,37.7749295,-122.4194155,California US,North America
  San Jose,37.3382082,-121.8863286,California US,North America
  Canada,56.130366,-106.346771,Canada,North America
  Winnipeg,49.895136,-97.1383743999999,Canada,North America
  Colorado Springs,38.8338816,-104.8213634,Colorado US,North America
  Denver,39.7392358,-104.990251,Colorado US,North America
  New Haven,41.308274,-72.9278835,CT US,North America
  Washington,47.7510741,-120.7401386,D.C. US,North America
  Jacksonville,30.3321838,-81.6556509999999,Florida US,North America
  Miami,25.7616798,-80.1917902,Florida US,North America
  Orlando,28.5383355,-81.3792365,Florida US,North America
  Tallahassee,30.4382559,-84.2807328999999,Florida US,North America
  Tampa,27.950575,-82.4571776,Florida US,North America
  Atlanta,33.7489954,-84.3879824,Georgia US,North America
  Honolulu,21.3069444,-157.8583333,Hawaii US,North America
  
negative.code: Benin City,6.334986,5.6037465,Nigeria,Africa
  Ibadan,7.3775355,3.9470396,Nigeria,Africa
  Kaduna,10.5104642,7.4165053,Nigeria,Africa
  Kano,12.0021794,8.5919561,Nigeria,Africa
  Lagos,6.5243793,3.3792057,Nigeria,Africa
  Nigeria,9.081999,8.675277,Nigeria,Africa
  Port Harcourt,4.815554,7.0498442,Nigeria,Africa
  Cape Town,-33.9248685,18.4240553,South Africa,Africa
  Durban,-29.8586804,31.0218404,South Africa,Africa
  Johannesburg,-26.2041028,28.0473051,South Africa,Africa
  Port Elizabeth,-33.7139247,25.5207358,South Africa,Africa
  Pretoria,-25.7478676,28.2292712,South Africa,Africa
  South Africa,-30.559482,22.937506,South Africa,Africa
  Soweto,-26.2485377,27.8540323,South Africa,Africa
  Las Palmas,28.1235459,-15.4362574,Spain,Europe
  Delhi,28.7040592,77.1024902,India,South Asia
  Indore,22.7195687,75.8577258,India,South Asia
  Jaipur,26.9124336,75.7872709,India,South Asia
  Kanpur,26.449923,80.3318736,India,South Asia
  Kolkata,22.572646,88.363895,India,South Asia
  Lucknow,26.8466937,80.946166,India,South Asia
  Nagpur,21.1458004,79.0881546,India,South Asia
  Patna,25.5940947,85.1375645,India,South Asia
  Rajkot,22.3038945,70.8021599,India,South Asia
  Ranchi,23.3440997,85.309562,India,South Asia
  Srinagar,34.0836708,74.7972825,India,South Asia
  Surat,21.1702401,72.8310607,India,South Asia
  