¨¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨¨
^¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨^
=^¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨^=
†=^¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨^=†
*†=^¨¨¨¨¨¨                                          ¨¨¨¨¨¨^=†*
§*†=^¨¨¨¨¨                  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!        ¨¨¨^=†*§&#
&§*†=^¨¨¨¨                                          ¨¨¨¨^=†*§&
§*†=^¨¨¨¨¨                                          ¨¨¨¨¨^=†*§
*†=^¨¨¨¨¨¨                                          ¨¨¨¨¨¨^=†*
†=^¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨^=†
=^¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨^=
^¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨^