,,,,~«^$#¶                                          ¶#$^«~,,,,
,,,~«^$#¶@                                          @¶#$^«~,,,
,,~«^$#¶@#                                          #@¶#$^«~,,
,~«^$#¶@##                                          ##@¶#$^«~,
,,~«^$#¶@#                                          #@¶#$^«~,,
,,,~«^$#¶@                   rails                  @¶#$^«~,,,
,,,,~«^$#¶                                          ¶#$^«~,,,,
,,,,,~«^$#                                          #$^«~,,,,,
,,,,,,~«^$ ######################################## $^«~,,,,,,
,,,,,,,~«^                                          ^«~,,,,,,,
,,,,,,,,~« ######################################## «~,,,,,,,,
,,,,,,,,,~                                          ~,,,,,,,,,
,,,,,,,,~«                                          «~,,,,,,,,
,,,,,,,~«^ trains  are  so  constructed  that  they ^«~,,,,,,,
,,,,,,~«^$ 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!        ##@¶#$^«~,
,,~«^$#¶@#                                          #@¶#$^«~,,
,,,~«^$#¶@                                          @¶#$^«~,,,
,,,,~«^$#¶                                          ¶#$^«~,,,,
,,,,,~«^$#                                          #$^«~,,,,,
,,,,,,~«^$                                          $^«~,,,,,,
,,,,,,,~«^                                          ^«~,,,,,,,