.~»==$##@@                                          @@##$==»~.
...»»»==##                                          ##==»»»...
.~»==$####                                          ####$==»~.
......»=#@                                          @#=»......
......~»=#                                          #=»~......
.....»=$$#                                     .    #$$=».....
.~»==$##@#                                        . #@##$==»~.
.~»====$$#                                    . ~.  #$$====»~.
.~»==$#@## GULL CALL.                    .      . ~ ##@#$==»~.
.~»==$$$$# »»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»»» #$$$$==»~.
.~»==$##@#                                          #@##$==»~.
....~~===# 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.)                 #=».......
.~»==$##@#                                          #@##$==»~.
.~»==$#@##                                          ##@#$==»~.
.~»==$##@@                                          @@##$==»~.
.~»==$##@#                                          #@##$==»~.
.~»==$##@#                                          #@##$==»~.