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