.
                                 heart
                            heart heart
                          heart heart he
                       heart heart heart
                        heartheartheart
                   ­     heartheartheart
                        heartheartheart
                        ­heartheartheart
                        heartheartheart
                        heartheartheart
                        ­heartheartheart
                        heartheartheart  
                        heartheartheart
                        heartheartheart  
               heart heart         heart heart
          heartheartheart heartheartheart
       heart heart heart  heart heart heart
        heartheartheart    heartheartheart
              heartheart             heart heart