.
                                      S
                              o    om      o
                          m        et          m
                         e           hi             e
                        t          n     g           t
                        h         S      o          h
                         i          m    e          i
                          n        t     h         n
                            g        i   n        g
                              S        g         S
                               o       S       o
                                 m    o    m
                                    e   o   e