.
                                    C
                         ­  a     a  m     a
                         m      e  l         m
                         e        t  o          e
                        l            e  ­           l
                        t        c       a        t
                        o       m      e       o
                         e        l      t        e
                           c          o          c
                              a       e       a
                                 m   ~   m
                                        e
                     ­                   l