###¨##¨##¨                                          ¨¨###¨¨¨¨#
¨¨¨##¨##¨#                                          ¨¨#¨¨#¨¨¨#
#¨¨#¨##¨##                                          ¨¨##¨##¨¨#
¨#¨###¨##¨                                          ¨¨#¨##¨#¨#
####¨¨##¨#                                          #¨###¨####
¨¨¨¨#¨#¨##                   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!         ¨¨#¨###¨#¨
¨##¨#¨¨#¨#                                          #¨###¨¨###
##¨###¨###                                          ¨##¨¨#¨#¨¨
#¨##¨¨##¨¨                                          ##¨#¨####¨
###¨#¨#¨#¨                                          ¨¨####¨¨¨#
¨¨¨#######                                          ¨¨#¨¨¨#¨¨#
#¨¨#¨¨¨¨¨¨                                          ¨¨##¨¨##¨#