private string Variant1(string text) // the winner!
        {
            var index = -1;

            do
            {
                var abbreviation = _moduleInfo.GetBibleBook(text, false);
                if (abbreviation != null)
                {
                    return(abbreviation.BibleBook.Name);
                }
                else
                {
                    index = text.IndexOfAny(new char[] { ' ', ',', '.', ':', '-', '/', '\\', '>', '<', '=' });
                    if (index != -1)
                    {
                        text = text.Substring(index + 1);
                    }
                }
            } while (index > -1);

            return(null);
        }