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...,,,†££&                  rails                   &££†,,,...
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....,«†§§& &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& &§§†«,....
.,«†§£&&&&                                          &&&&£§†«,.
....,††££# &&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&& #££††,....
.,«†§£&###                                          ###&£§†«,.
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.,«†§£&### 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. ###&£§†«,.
...,††§&&#                                          #&&§††,...
.,«†§£&&##                 &&&&&&&&                 ##&&£§†«,.
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.,,,«§§&## 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!        ###&£§†«,.
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