How to change json data format

This article will give you the tools and show you how to do what you are asking: Working with JSON in C# & VB[^]

Also, there is an error in your JSON data. It should be:

{

    "concepts": {
         "http://dbpedia.org/resource/Chuckles_(G.I._Joe)": {
           "SurfaceForms": [
             {
               "Score": 0.9460024,
               "String": "CHUCKLES",
               "Offset": 3
             }
           ],
           "Types": [ "" ],
           "Support": 52
         }
       },
"concepts": {
         "http://dbpedia.org/resource/Memory,_Sorrow,_and_Thorn": {
           "SurfaceForms": [
             {
               "Score": 1.0,
               "String": "Sithi",
               "Offset": 2
             }
           ],
           "Types": [ "" ],
           "Support": 43
         }
       }

}

And here is the C# classes generated by JSON Utils: Generate C#, VB.Net, SQL Table, Java and PHP from JSON[^]:

public class SurfaceForm
{

	[JsonProperty("Score")]
	public double Score { get; set; }

	[JsonProperty("String")]
	public string String { get; set; }

	[JsonProperty("Offset")]
	public int Offset { get; set; }
}

public class HttpDbpediaOrgResourceMemorySorrowAndThorn
{

	[JsonProperty("SurfaceForms")]
	public IList<SurfaceForm> SurfaceForms { get; set; }

	[JsonProperty("Types")]
	public IList<string> Types { get; set; }

	[JsonProperty("Support")]
	public int Support { get; set; }
}

public class Concepts
{

	[JsonProperty("http://dbpedia.org/resource/Memory,_Sorrow,_and_Thorn")]
	public HttpDbpediaOrgResourceMemorySorrowAndThorn HttpDbpediaOrgResourceMemorySorrowAndThorn { get; set; }
}

public class Result
{

	[JsonProperty("concepts")]
	public Concepts Concepts { get; set; }
}

To populate the classes, the above article link[^] will show you how.