docs: def classify(self, text):
          """
          Chooses the highest scoring category for a sample of text
  
          :param text: sample text to classify
          :type text: str
          :return: the "winning" category
          :rtype: str
          """
          score = self.score(text)
          if not score:
              return None
          return sorted(score.items(), key=lambda v: v[1])[-1][0]