,,^«\^%&##                                          ##&%^\«^,,
,^«\^%&###                                          ###&%^\«^,
,,^«\^%&##                                          ##&%^\«^,,
,,,^«\^%&#                                          #&%^\«^,,,
,,,,^«\^%&                                          &%^\«^,,,,
,,,,,^«\^%                   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!         #&%^\«^,,,
,,,,^«\^%&                                          &%^\«^,,,,
,,,,,^«\^%                                          %^\«^,,,,,
,,,,,,^«\^                                          ^\«^,,,,,,
,,,,,,,^«\                                          \«^,,,,,,,
,,,,,,,,^«                                          «^,,,,,,,,
,,,,,,,,,^                                          ^,,,,,,,,,