.^«†††@@¤#                                          #¤@@†††«^.
..^««^^@££                                          ££@^^««^..
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....^«†^@£                                          £@^†«^....
.....«††@£                                          £@††«.....
.^«†^@@@££                  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!         ##£¤@^†«^.
.^«†^¤£###                                          ###£¤^†«^.
......«†^¤                                          ¤^†«......
.^«†^@¤£##                                          ##£¤@^†«^.
.^«†^@¤£##                                          ##£¤@^†«^.
.^«†^@¤£##                                          ##£¤@^†«^.
.^«†^@@@¤¤                                          ¤¤@@@^†«^.