§§§††~....                                          ....~††§§§
#§¤¤†.....                                          .....†¤¤§#
##@§¤§†~..                                          ..~†§¤§@##
@§¤¤†††~..                                          ..~†††¤¤§@
#@@§¤§†~..                                          ..~†§¤§@@#
@§¤††.....                   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!        ..~†§¤@###
@§¤¤¤§†~..                                          ..~†§¤¤¤§@
@@@§¤§†~..                                          ..~†§¤§@@@
##@§¤§†~..                                          ..~†§¤§@##
###@¤§†~..                                          ..~†§¤@###
##@§¤§†~..                                          ..~†§¤§@##
#§§†~~....                                          ....~~†§§#