var addressPoints = [
  [
    "Berkeley CA, USA",
    37.8708393,
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  ],
  [
    "London, UK",
    51.5073219,
    -0.1276473
  ],
  [
    "San Francisco, California",
    37.7792808,
    -122.4192362
  ],
  [
    "Los Angeles, CA",
    34.0543942,
    -118.2439408
  ]
];