new_contents: class Song(object):
      def __init__(self,lyrics):
          self.lyrics = lyrics
  
      def sing_me_a_song(self):
          for line in self.lyrics:
              print line
  
  happy_bday = Song(["Happy birthday to you ",
                     "I dont want to get sued",
                     "So I'll stop right there"])
  bulls_on_parade = Song(["They rally around the family",
                          "With pockets full of shells"])
  
  happy_bday.sing_me_a_song()
  
  bulls_on_parade.sing_me_a_song()
  
  
     
  
subject: add ex40