sample_cities.json

[
  {
    "cityId": "1",
    "name": "London",
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  },
  {
    "cityId": "325",
    "name": "Bucharest",
    "polygon": "44.432037 25.850317,44.475069 25.855792,44.51525 25.865397,44.564243 25.897009,44.612467 25.940104,44.621242 26.010159,44.662562 26.075493,44.621453 26.166361,44.58158 26.241682,44.544017 26.288901,44.498609 26.322331,44.37415 26.326348,44.309091 26.242403,44.265582 26.150381,44.262652 26.08621,44.266104 26.04608,44.280604 25.993751,44.312782 25.955118,44.361388 25.916235,44.400648 25.85169,44.432037 25.850317,44.432037 25.850317,44.432037 25.850317,44.432037 25.850317,44.432037 25.850317,44.432037 25.850317,44.432037 25.850317"
  }
]