text: from nltk.tokenize import SpaceTokenizer
  
  tokenizer = SpaceTokenizer()
  start_tag = 0
  
  
  def write_sentence_in_format(sentence, input_file, out):
      list_of_words_from_sentence = tokenize(sentence)
      write(list_of_words_from_sentence, out, input_file)
  
  
  def tokenize(sentence):
      return tokenizer.tokenize(sentence)
  
  
  def write(list_of_words, out, input_file):
      global start_tag
      for line in list_of_words:
          # write line to output file
          pass
  
  def write_value(sentence, value, out):
      out.write(sentence+" "+value+"\n")
  
  
  