....«****¶                                          ¶****«....
.^«:***¤¤¶                                          ¶¤¤***:«^.
......^:*¤                                          ¤*:^......
.^«:*¤¶###                                          ###¶¤*:«^.
...«:**¤¤¤                                          ¤¤¤**:«...
.^«:**¤¶##                  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!         ¤*:^......
.^«:**¤¶##                                          ##¶¤**:«^.
.^«:**¤¶##                                          ##¶¤**:«^.
.^«:**¤¶##                                          ##¶¤**:«^.
.....^:**¶                                          ¶**:^.....
.^««««::*¶                                          ¶*::««««^.
.^«:****¤¶                                          ¶¤****:«^.