code: def raw_clean(self, datas):
          
          datas = strip_tags(datas)             # Remove HTML
          datas = STOP_WORDS.rebase(datas, '')  # Remove STOP WORDS
          datas = PUNCTUATION.sub('', datas)    # Remove punctuation
          datas = datas.lower()
          return [d for d in datas.split() if len(d) > 1]
docs: Apply a cleaning on raw datas.