.....-§§§#                                          #§§§-.....
.~-^§%§###                                          ###§%§^-~.
.~-^§%§###                                          ###§%§^-~.
.~-^§%§###                                          ###§%§^-~.
.~-^§%§###                                          ###§%§^-~.
.....~-§§§                  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!         §%§-......
....--§§§§                                          §§§§--....
~-^§%§####                                          ####§%§^-~
.~~--^%§##                                          ##§%^--~~.
.~-^§%§###                                          ###§%§^-~.
.....-§§§#                                          #§§§-.....
.~-^§%§###                                          ###§%§^-~.