What is the proper syntax of the following JSON string

I need to extract data from MSACCES database in JSON object...
So I'm not quite sure about the right JSON string syntax.
Which one is correct:

{
  "Continent": {
    "Europe": {
      "Countries": 
        {
          "The Netherlands": {
            "Cities": [
              "Rotterdam",
              "Hag",
              "Amsterdam"
            ]
          }
        },
        {
          "Germany": {
            "Cities": [
              "Bon",
              "Berlin"
            ]
          }
        }
    }
  }
}

or this one:

{
  "Continent": {
    "Europe": {
      "Countries": [
        {
          "The Netherlands": {
            "Cities": [
              "Rotterdam",
              "Hag",
              "Amsterdam"
            ]
          }
        },
        {
          "Germany": {
            "Cities": [
              "Bon",
              "Berlin"
            ]
          }
        }
      ]
    }
  }
}

I wonder between {"Countries":[{"The Net... or {"Countries":{"The Net..

Since you are having an array of Country[], I would advice you to rename your Country key by Countries:

Countries: [{}, {}]

IMHO, the best way is to keep relations

{
  "Continens": {
    "Continent": "Europe",
    "Countries": [
      {
        "Country": "The Netherlands",
        "Cities": [
          "Rotterdam",
          "Hag",
          "Amsterdam"
        ]
      },
      {
        "Country": "Germany",
        "Cities": [
          "Bon",
          "Berlin"
        ]
      }
    ]
  }
}

classes (translate to your language)

 public class World
    {
        public Continens Continens { get; set; }
    }
     public class Continens
    {
        public string Continent { get; set; }
        public List<Country> Countries { get; set; }
    }

    public class Country
    {
        public string Country { get; set; }
        public List<string> Cities { get; set; }
    }

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