.^==^%@£@#                                          #@£@%^==^.
..^==^%@£@                                          @£@%^==^..
.^==^%@£@#                                          #@£@%^==^.
..^==^%@£@                                          @£@%^==^..
.^==^%@£@#                                          #@£@%^==^.
..^==^%@£@                  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!        @£@%^==^..
.^==^%@£@#                                          #@£@%^==^.
..^==^%@£@                                          @£@%^==^..
.^==^%@£@#                                          #@£@%^==^.
..^==^%@£@                                          @£@%^==^..
.^==^%@£@#                                          #@£@%^==^.
..^==^%@£@                                          @£@%^==^..