using System;

using System.Globalization;

using System.Text.RegularExpressions;

public class Program

{

    public static void Main()

    {

        var text = "<wd:response><wd:response-data></wd:response-data></wd:response >";

        string result = text.Replace("wd:response", "response");

        var expected = "<response><wd:response-data></wd:response-data></response>";

        Console.WriteLine(string.Equals(result, expected));

    }

}