..~:=$####                                          ####$=:~..
.~:=$@####                                          ####@$=:~.
..~:===@##                                          ##@===:~..
..~::==@##                                          ##@==::~..
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..~:=$@###                                     .    ###@$=:~..
...~~~::$#                                        . #$::~~~...
......~=@#                                    . ..  #@=~......
..~::=$$@# GULL CALL.                    .      . . #@$$=::~..
....~:$$@# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #@$$:~....
....::==@#                                          #@==::....
..~:=$@### THE  SEAGULL IS A  METAPHYSICS TRICK;  A ###@$=:~..
..~:=$@### WORLD-BUILDER'S  SHORTCUT,  TO DEFINE  A ###@$=:~..
......:=@# 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 @===~.....
..~:=$@### AS  FIVE  VERTICES;  SIX  TRIANGLES.  (I ###@$=:~..
..~:=$@### WOULD  RECOMMEND HANDLING  IN  SWARMS OF ###@$=:~..
..~:=$@### AT LEAST A DOZEN BIRDS.)                 ###@$=:~..
..~:=$@@##                                          ##@@$=:~..
..~::=$$@#                                          #@$$=::~..
..~:=$@###                                          ###@$=:~..
......~=$#                                          #$=~......
......~:$@                                          @$:~......