,@@,,@,@,@                                          ,@,@,@,,@,
@,@,@@,@,@                                          ,@,@,@,@@,
@,@,,@,@,@                                          ,@,@,@,,@,
@,@,@@,@,@                                          ,@,@,@,@@,
@,@,,@,@,@                                          ,@,@,@,,@,
@,@,@@,@,@                                     ,    ,@,@,@,@@,
@,@,,@,@,@                                        , ,@,@,@,,@,
@,@,@@,@,@                                    , -,  ,@,@,@,@@,
@,@,,@,@,@ GULL CALL.                    ,      , - ,@,@,@,,@,
@,@,@@,@,@ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ,@,@,@,@@,
@,@,,@,@,@                                          ,@,@,@,,@,
@,@,@@,@,@ THE SEAGULL  IS  A METAPHYSICS TRICK;  A ,@,@,@,@@,
@,@,,@,@,@ WORLD-BUILDER'S  SHORTCUT,  TO  DEFINE A ,@,@,@,,@,
@,@,@@,@,@ SECTION OF REALITY  AND IMPLY  ITS SIZE: ,@,@,@,@@,
@,@,,@,@,@ PLACE A  FLOCK OF BIRDS  AT THE EDGE AND ,@,@,@,,@,
@,@,@@,@,@ MAKE  THEIR  CALLS  TESSELATE  OVER  THE ,@,@,@,@@,
@,@,,@,@,@ ENTIRE VOLUME                            ,@,@,@,,@,
@,@,@@,@,@                                          ,@,@,@,@@,
@,@,,@,@,@ A SEAGULL CAN BE  DEFINED  BY  AS LITTLE ,@,@,@,,@,
@,@,@@,@,@ AS  FIVE  VERTICES;  SIX  TRIANGLES.  (I ,@,@,@,@@,
@,@,,@,@,@ WOULD RECOMMEND HANDLING  IN  SWARMS  OF ,@,@,@,,@,
@,@,@@,@,@ AT LEAST A DOZEN BIRDS.)                 ,@,@,@,@@,
@,@,,@,@,@                                          ,@,@,@,,@,
@,@,@@,@,@                                          ,@,@,@,@@,
@,@,,@,@,@                                          ,@,@,@,,@,
@,@,@@,@,@                                          ,@,@,@,@@,
@,@,,@,@,@                                          ,@,@,@,,@,