@,,@,@@@,,                                          @,@@,,,@,@
@,@@,,@@,@                                          @,,@,,@@,,
@,,@,@,@,,                                          @,@@,@,@,@
@,@@,@,@,@                                          @,,@,@,@,,
@,,@,@,@,,                                          @,@@,@,@,@
@,@@,@,@,@                                     ,    @,,@,@,@,,
@,,@,@,@,,                                        , @,@@,@,@,@
@,@@,@,@,@                                    , ,,  @,,@,@,@,,
@,,@,@,@,, 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.)                 @,,@,@,@,,
@,,@,@,@,,                                          @,@@,@,@,@
@,@@,@,@,@                                          @,,@,@,@,,
@,,@,@,@,,                                          @,@@,@,@,@
@,@@,@,@,@                                          @,,@,@,@,,
@,,@,@,@,,                                          @,@@,@,@,@