new_contents: def break_words(stuff):
      """This function will brea up words for us."""
      words = stuff.split(' ')
      return words
  
  def sort_words(words):
      """Sorts the words."""
      return sorted(words)
  
  def print_first_word(words):
      """Prints the first word after popping it off."""
      word = words.pop(0)
      print word
  
  def print_last_word(words):
      """Prints the last word after popping it off."""
      word = words.pop(-1)
      print word
  
  def sort_sentence(sentence):
      """Takes in a full senctence and returns the sorted words."""
      words = break_words(sentence)
      return sort_words(words)
  
  def print_first_and_last(sentence):
      """Prints the first and last words of a sentence."""
      words = break_words(sentence)
      print_first_word(words)
      print_last_word(words)
  
  def print_first_and_last_sorted(sentence):
      """Sorts the words the prints the first and last one."""
      words = sort_sentence(sentence)
      print_first_word(words)
      print_last_word(words)
  
subject: Add work for Exercise 25.