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