code: def clean_title(title):
      
      date_pattern = re.compile(r'\W*'
                                r'\d{1,2}'
                                r'[/\-.]'
                                r'\d{1,2}'
                                r'[/\-.]'
                                r'(?=\d*)(?:.{4}|.{2})'
                                r'\W*')
      title = date_pattern.sub(' ', title)
      title = re.sub(r'\s{2,}', ' ', title)
      title = title.strip()
      return title
docs: Clean title -> remove dates, remove duplicated spaces and strip title.
  
      Args:
          title (str): Title.
  
      Returns:
          str: Clean title without dates, duplicated, trailing and leading spaces.