¶%^,......                                          ......,^%¶
##¶&%†^~,.                                          .,~^†%&¶##
¶%†~......                                          ......~†%¶
##¶&%†^~,.                                          .,~^†%&¶##
¶&††^^~...                                          ...~^^††&¶
¶¶%%†^~,..                  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!         .,~~~^†%&¶
¶&&&%†^~,.                                          .,~^†%&&&¶
&&††~~,...                                          ...,~~††&&
¶%^~......                                          ......~^%¶
&&†^^^,...                                          ...,^^^†&&
##¶&%†^~,.                                          .,~^†%&¶##
###¶%†^~,.                                          .,~^†%¶###