##@¤$*^~^¨                                          ¨^~^*$¤@##
#@¤$*^~^¨¨                                          ¨¨^~^*$¤@#
@¤$*^~^¨¨¨                                          ¨¨¨^~^*$¤@
¤$*^~^¨¨¨¨                                          ¨¨¨¨^~^*$¤
$*^~^¨¨¨¨¨                                          ¨¨¨¨¨^~^*$
*^~^¨¨¨¨¨¨                   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       ¨¨¨¨¨¨^~^*
$*^~^¨¨¨¨¨ scattered,  often  put on top  of poles, ¨¨¨¨¨^~^*$
¤$*^~^¨¨¨¨ to  be interpreted by the train drivers. ¨¨¨¨^~^*$¤
@¤$*^~^¨¨¨ different  parts  of  the  railway  have ¨¨¨^~^*$¤@
#@¤$*^~^¨¨          different speed limits.         ¨¨^~^*$¤@#
##@¤$*^~^¨                                          ¨^~^*$¤@##
#@¤$*^~^¨¨ sometimes, trains  have to stop and wait ¨¨^~^*$¤@#
@¤$*^~^¨¨¨ for something to happen, far away.  this ¨¨¨^~^*$¤@
¤$*^~^¨¨¨¨ is  signaled  by  red  or  green lights. ¨¨¨¨^~^*$¤
$*^~^¨¨¨¨¨                                          ¨¨¨¨¨^~^*$
*^~^¨¨¨¨¨¨                 ¤¤¤¤¤¤¤¤                 ¨¨¨¨¨¨^~^*
$*^~^¨¨¨¨¨                                          ¨¨¨¨¨^~^*$
¤$*^~^¨¨¨¨ many  people follow the  rails by  foot. ¨¨¨¨^~^*$¤
@¤$*^~^¨¨¨ often  this proves  to  be  the  shorter ¨¨¨^~^*$¤@
#@¤$*^~^¨¨ path between two  points.  however  this ¨¨^~^*$¤@#
##@¤$*^~^¨ is  frowned   upon,  and  very  impolite ¨^~^*$¤@##
#@¤$*^~^¨¨         toward the train drivers!        ¨¨^~^*$¤@#
@¤$*^~^¨¨¨                                          ¨¨¨^~^*$¤@
¤$*^~^¨¨¨¨                                          ¨¨¨¨^~^*$¤
$*^~^¨¨¨¨¨                                          ¨¨¨¨¨^~^*$
*^~^¨¨¨¨¨¨                                          ¨¨¨¨¨¨^~^*
$*^~^¨¨¨¨¨                                          ¨¨¨¨¨^~^*$
¤$*^~^¨¨¨¨                                          ¨¨¨¨^~^*$¤