,^=%%&@###                                          ###@&%%=^,
,^=†%%&@@#                                          #@@&%%†=^,
,,,,,^=†%&                                          &%†=^,,,,,
,^=†%%&@##                                          ##@&%%†=^,
,^=†%%&@##                                          ##@&%%†=^,
,^=†%%&@##                   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!        &%%%%=^,,,
,^=†%%&@##                                          ##@&%%†=^,
,,,^^=†%&@                                          @&%†=^^,,,
,,,,^††%&@                                          @&%††^,,,,
,^=†††%%%&                                          &%%%†††=^,
,^=†%%&@@@                                          @@@&%%†=^,
,^=†%%&@##                                          ##@&%%†=^,