...«///%##                                          ##%///«...
.....««%§#                                          #§%««.....
.~«/%%§###                                          ###§%%/«~.
.~«/%%§###                                          ###§%%/«~.
....~~/%§§                                          §§%/~~....
.~««««%%%#                   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!         #%%%««....
...«//%§§#                                          #§§%//«...
...~«/%%§#                                          #§%%/«~...
.....~«%%§                                          §%%«~.....
.~«/%%%§§§                                          §§§%%%/«~.
...~//%%%§                                          §%%%//~...
.~«/%%§###                                          ###§%%/«~.