XML C#

using System;
using System.IO;
using System.Xml;
using System.Xml.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass{
   public static void Main(){
            string xmlFrag ="Java " +
                                    "C#" +
                                    "HTML";
            
            NameTable nt = new NameTable();
            XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);
            nsmgr.AddNamespace("rk", "urn:store-items");
            
            XmlParserContext context = new XmlParserContext(null, nsmgr, null, XmlSpace.None);
            
            XmlReaderSettings settings = new XmlReaderSettings();
            settings.ConformanceLevel = ConformanceLevel.Fragment;
            XmlReader reader = XmlReader.Create(new StringReader(xmlFrag), settings, context);
    }
}