......:~=^                                          ^=~:......
.....:~=^£                                          £^=~:.....
....:~=^£@                                          @£^=~:....
...:~=^£@£                                          £@£^=~:...
..:~=^£@£#                                          #£@£^=~:..
.:~=^£@£##                  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!         £@£^=~:...
..:~=^£@£#                                          #£@£^=~:..
.:~=^£@£##                                          ##£@£^=~:.
..:~=^£@£#                                          #£@£^=~:..
...:~=^£@£                                          £@£^=~:...
....:~=^£@                                          @£^=~:....
.....:~=^£                                          £^=~:.....