######.###                                          ##########
.....##...                                          ..........
....#.#...                                          ..........
...####..#                                          ..........
..#...#.##                                          ..........
.##..###.#                                     .    ..........
#.#.#..##.                                        . ..........
#####.#.##                                    . :.  .........#
....####.# 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.)                 ##.##.###.
#...#####.                                          .##.##..#.
#..#....#.                                          #.##.#.###
#.##...###                                          ##.####...
##.#..#...                                          .##...#..#
.###.##..#                                          #.#..##.#.