Newtonsoft json library

using Newtonsoft.Json.Linq;
using System;
namespace fina {
  class Program {
    static void Main(string[] args) {
      string str =
          "{ \"context_name\": { \"lower_bound\": \"value\", \"upper_bound\": \"value\", \"values\": [ \"value1\", \"valueN\" ] } }";
      JObject json = JObject.Parse(str);
      foreach (var e in json) {
        Console.WriteLine(e);
      }
    }
  }
}