.,~:†$£###                                          ###£$†:~,.
......,:$£                                          £$:,......
.,~:†$£###                                          ###£$†:~,.
.,~:†$####                                          ####$†:~,.
.....,~†$£                                          £$†~,.....
.,~:†$####                   rails                  ####$†:~,.
.,~:†$£###                                          ###£$†:~,.
.,~:†$####                                          ####$†:~,.
....,~:$£# ££££££££££££££££££££££££££££££££££££££££ #£$:~,....
.,~:†£####                                          ####£†:~,.
.,~:†$£### ££££££££££££££££££££££££££££££££££££££££ ###£$†:~,.
.,~:†$£###                                          ###£$†:~,.
.,~:†$$££#                                          #££$$†:~,.
....,,:†££ 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. ££†:,.....
...,,,~†$# often  this  proves  to be  the  shorter #$†~,,,...
.,~:†$£### path between  two  points.  however this ###£$†:~,.
....~†$££# is  frowned  upon,  and   very  impolite #££$†~....
.,~:†$£###        toward the train drivers!         ###£$†:~,.
.,~:†$£###                                          ###£$†:~,.
.....,~:$£                                          £$:~,.....
.,~:†$£###                                          ###£$†:~,.
.,~:†$£###                                          ###£$†:~,.
.,~:†$£###                                          ###£$†:~,.
.,~:†$£###                                          ###£$†:~,.