$%^«^,,,,,                                          ,,,,,^«^%$
#$%^«^,,,,                                          ,,,,^«^%$#
£#$%^«^,,,                                          ,,,^«^%$#£
#£#$%^«^,,                                          ,,^«^%$#£#
##£#$%^«^,                                          ,^«^%$#£##
#£#$%^«^,,                  rails                   ,,^«^%$#£#
£#$%^«^,,,                                          ,,,^«^%$#£
#$%^«^,,,,                                          ,,,,^«^%$#
$%^«^,,,,, ######################################## ,,,,,^«^%$
%^«^,,,,,,                                          ,,,,,,^«^%
$%^«^,,,,, ######################################## ,,,,,^«^%$
#$%^«^,,,,                                          ,,,,^«^%$#
£#$%^«^,,,                                          ,,,^«^%$#£
#£#$%^«^,, trains  are  so  constructed  that  they ,,^«^%$#£#
##£#$%^«^, have to follow a set  path. this path is ,^«^%$#£##
#£#$%^«^,, called a "railway",  which is  comprised ,,^«^%$#£#
£#$%^«^,,, of two metal  rails, hence its nickname. ,,,^«^%$#£
#$%^«^,,,,                                          ,,,,^«^%$#
$%^«^,,,,, because  the  low friction  between  the ,,,,,^«^%$
%^«^,,,,,, 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 ,,,,,,^«^%
$%^«^,,,,, is  frowned  upon,  and  very   impolite ,,,,,^«^%$
#$%^«^,,,,        toward the train drivers!         ,,,,^«^%$#
£#$%^«^,,,                                          ,,,^«^%$#£
#£#$%^«^,,                                          ,,^«^%$#£#
##£#$%^«^,                                          ,^«^%$#£##
#£#$%^«^,,                                          ,,^«^%$#£#
£#$%^«^,,,                                          ,,,^«^%$#£
#$%^«^,,,,                                          ,,,,^«^%$#