...^«†%£@#                                          #@£%†«^...
....^«†%£@                                          @£%†«^....
.....^«†%£                                          £%†«^.....
......^«†%                                          %†«^......
.......^«†                                          †«^.......
........^«                  rails                   «^........
.......^«†                                          †«^.......
......^«†%                                          %†«^......
.....^«†%£ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ £%†«^.....
....^«†%£@                                          @£%†«^....
...^«†%£@# @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ #@£%†«^...
..^«†%£@##                                          ##@£%†«^..
.^«†%£@###                                          ###@£%†«^.
..^«†%£@## trains  are  so  constructed  that  they ##@£%†«^..
...^«†%£@# have  to follow a set path. this path is #@£%†«^...
....^«†%£@ called  a "railway", which is  comprised @£%†«^....
.....^«†%£ of two metal rails,  hence its nickname. £%†«^.....
......^«†%                                          %†«^......
.......^«† because  the  low  friction between  the †«^.......
........^« wheels of the  train and the rail metal, «^........
.......^«† there are limits for how  acute a  curve †«^.......
......^«†% can  be,  and  even more so for how much %†«^......
.....^«†%£ the  ground  under  the  rails   can  be £%†«^.....
....^«†%£@ sloped. thus a railway  is often not led @£%†«^....
...^«†%£@# on top of hills, rather through them  in #@£%†«^...
..^«†%£@## tunnels   (if  they   are   large),   or ##@£%†«^..
.^«†%£@###            artificial chasms.            ###@£%†«^.
..^«†%£@##                                          ##@£%†«^..
...^«†%£@# there will  be trees on the side of  the #@£%†«^...
....^«†%£@ rails, but not too  close, or  they will @£%†«^....
.....^«†%£ be  cut  down  by the  railway janitors. £%†«^.....
......^«†% there  will be  plains,  and  bodies  of %†«^......
.......^«†                  water.                  †«^.......
........^«                                          «^........
.......^«† trains go  by day and  by  night.  along †«^.......
......^«†%      the way, there is information       %†«^......
.....^«†%£ scattered,  often  put on  top of poles, £%†«^.....
....^«†%£@ to be  interpreted by the train drivers. @£%†«^....
...^«†%£@# different  parts  of  the  railway  have #@£%†«^...
..^«†%£@##          different speed limits.         ##@£%†«^..
.^«†%£@###                                          ###@£%†«^.
..^«†%£@## sometimes, trains have  to stop and wait ##@£%†«^..
...^«†%£@# for something to happen, far away.  this #@£%†«^...
....^«†%£@ is  signaled  by  red or  green  lights. @£%†«^....
.....^«†%£                                          £%†«^.....
......^«†%                 @@@@@@@@                 %†«^......
.......^«†                                          †«^.......
........^« many people follow  the rails  by  foot. «^........
.......^«† often  this  proves to  be  the  shorter †«^.......
......^«†% path  between  two points. however  this %†«^......
.....^«†%£ is  frowned  upon,   and  very  impolite £%†«^.....
....^«†%£@        toward the train drivers!         @£%†«^....
...^«†%£@#                                          #@£%†«^...
..^«†%£@##                                          ##@£%†«^..
.^«†%£@###                                          ###@£%†«^.
..^«†%£@##                                          ##@£%†«^..
...^«†%£@#                                          #@£%†«^...
....^«†%£@                                          @£%†«^....