$%:=,¨¨¨¨¨                                          ¨¨¨¨¨,=:%$
%:=,¨¨¨¨¨¨                                          ¨¨¨¨¨¨,=:%
:=,¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨,=:
=,¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨,=
,¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨,
¨¨¨¨¨¨¨¨¨¨                   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!         ¨¨¨¨¨¨¨¨,=
,¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨,
¨¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨¨
¨¨¨¨¨¨¨¨¨¨                                          ¨¨¨¨¨¨¨¨¨¨