new_contents: #! /usr/bin/env python
  # coding:utf-8
  
  import kovlive
  
  
  class PostProcessing:
      def convert(self, message, answer, master) -> (float, str, str):
          return answer
  
  
  class Ja2Kov(PostProcessing):
      def __init__(self, phrasemodel, bigrammodel):
          self.kl = kovlive.KovLang(phrasemodel, bigrammodel)
  
      def convert(self, message, answer, master) -> (float, str, str):
          prob, text, source, info = answer
          mod_text = self.kl.search(text)
  
          return (prob, mod_text, source, info)
  
subject: Add postprocess