###@¤¤%:,.                                          .,:%¤¤@###
##@¤¤%:,..                                          ..,:%¤¤@##
###@¤¤%:,.                                          .,:%¤¤@###
##@¤¤%:,..                                          ..,:%¤¤@##
###@¤¤%:,.                                          .,:%¤¤@###
##@¤¤%:,..                                     .    ..,:%¤¤@##
###@¤¤%:,.                                        . .,:%¤¤@###
##@¤¤%:,..                                    . ,.  ..,:%¤¤@##
###@¤¤%:,. 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.)                 ..,:%¤¤@##
###@¤¤%:,.                                          .,:%¤¤@###
##@¤¤%:,..                                          ..,:%¤¤@##
###@¤¤%:,.                                          .,:%¤¤@###
##@¤¤%:,..                                          ..,:%¤¤@##
###@¤¤%:,.                                          .,:%¤¤@###