class Program    {        static void Main(string[] args)        {            PP p = new PP(null);            Console.Read();        }    }    public class PP : LocalizedText    {        public PP(string tx)            : base(ref tx)        {            Console.WriteLine(tx);        }    }    public class LocalizedText    {        public LocalizedText(ref string text1)        {            text1 = "English";        }    }