.
                                       J
                               a    an       a
                            n       e j         n
                           e        an           e
                          J           e              J
                         a         J   a            a
                         n        n    e          n
                           e       J     a          e
                            J       n    e         J
                              a      J  a       a
                                n     n      n
                                       E