parameters: (s)
return_statement: return white_space_fix(remove_articles(remove_punc(lower(s))))
docstring: Lower text and remove punctuation, articles and extra whitespace.
docstring_summary: Lower text and remove punctuation, articles and extra whitespace.
docstring_tokens: Lower text and remove punctuation articles and extra whitespace .
function: def normalize_answer(s):
      """Lower text and remove punctuation, articles and extra whitespace."""
      def remove_articles(text):
          return re.sub(r'\b(a|an|the)\b', ' ', text)
  
      def white_space_fix(text):
          return ' '.join(text.split())
  
      def remove_punc(text):
          exclude = set(string.punctuation)
          return ''.join(ch for ch in text if ch not in exclude)
  
      def lower(text):
          return text.lower()
  
      return white_space_fix(remove_articles(remove_punc(lower(s))))
function_tokens: def normalize_answer ( s ) : def remove_articles ( text ) : return re . sub ( r'\b(a|an|the)\b' , ' ' , text ) def white_space_fix ( text ) : return ' ' . join ( text . split ( ) ) def remove_punc ( text ) : exclude = set ( string . punctuation ) return '' . join ( ch for ch in text if ch not in exclude ) def lower ( text ) : return text . lower ( ) return white_space_fix ( remove_articles ( remove_punc ( lower ( s ) ) ) )