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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                            #£†;......
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....=†$$£# a seagull  can  be defined  by as little #£$$†=....
..=;†£#### as  five  vertices;  six  triangles.  (i ####£†;=..
..=;†$£### would  recommend handling  in swarms  of ###£$†;=..
....;††$£# at least a dozen birds.)                 #£$††;....
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