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##@££=†~,¨ gull call.                    ¨      ¨ , ¨,~†=££@##
###@£=†~,¨ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ¨,~†=£@###
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##@££=†~,¨ 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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