..........                                          ..........
^.........                                          .........^
«^........                                          ........^«
^«^.......                                          .......^«^
$^«^......                                          ......^«^$
%$^«^.....                   rails                  .....^«^$%
£%$^«^....                                          ....^«^$%£
££%$^«^...                                          ...^«^$%££
#££%$^«^.. ££££££££££££££££££££££££££££££££££££££££ ..^«^$%££#
##££%$^«^.                                          .^«^$%££##
#££%$^«^.. ££££££££££££££££££££££££££££££££££££££££ ..^«^$%££#
££%$^«^...                                          ...^«^$%££
£%$^«^....                                          ....^«^$%£
%$^«^..... trains  are  so  constructed  that  they .....^«^$%
$^«^...... have to follow a set path. this  path is ......^«^$
^«^....... 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. .......^«^
$^«^......                                          ......^«^$
%$^«^.....                 ££££££££                 .....^«^$%
£%$^«^....                                          ....^«^$%£
££%$^«^... many people  follow the rails  by  foot. ...^«^$%££
#££%$^«^.. often  this  proves  to  be  the shorter ..^«^$%££#
##££%$^«^. path between two  points.  however  this .^«^$%££##
#££%$^«^.. is   frowned  upon,  and  very  impolite ..^«^$%££#
££%$^«^...         toward the train drivers!        ...^«^$%££
£%$^«^....                                          ....^«^$%£
%$^«^.....                                          .....^«^$%
$^«^......                                          ......^«^$
^«^.......                                          .......^«^
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^.........                                          .........^