new_contents: #! /usr/bin/env python
  # coding:utf-8
  
  from __future__ import division, print_function
  from pprint import pprint
  import sys
  sys.path.append("../")
  import decode
  
  
  if __name__ == '__main__':
      e = u"I"
      f = u"は"
      prob = decode.phrase_prob(e, f, trans="en2ja", db_name=":jec_basic:")
      pprint(prob)
  
subject: implement phrase_prob