.-~†^%&¶##                                          ##¶&%^†~-.
.-~†^%&###                                          ###&%^†~-.
.-~†^%&###                                          ###&%^†~-.
.-~†^%¶###                                          ###¶%^†~-.
.-~†^%&###                                          ###&%^†~-.
......~^%&                   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!         ##¶&%^†~-.
...-††%%%&                                          &%%%††-...
.....-~^%¶                                          ¶%^~-.....
.-~†^%&¶¶¶                                          ¶¶¶&%^†~-.
.-~†^%&¶##                                          ##¶&%^†~-.
.-~†^%&¶##                                          ##¶&%^†~-.
.-~†^%¶###                                          ###¶%^†~-.