llllllllllllllllllll
 l                  l
 llllllllllllllllllll

                              zzzz
                              z  z
                              z  z
                              z  z
                              z  z
                              z  z
                              z  z
                              zzzz

                                             GGGGGGGGGGGG
                                              G        G
                                               G      G
                                                G    G
                                                 G  G
                                                  GG