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.....~††$#                   rails                  #$††~.....
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.....~††$# ££££££££££££££££££££££££££££££££££££££££ #$††~.....
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....===††£ 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 £††~......
.~=††$$$$# path  between  two points.  however this #$$$$††=~.
.~=††$£### is  frowned   upon,  and  very  impolite ###£$††=~.
.~=††$£###        toward the train drivers!         ###£$††=~.
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