,,=†$&@###                                          ###@&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,,,=††$@@                   rails                  @@$††=,,,,
,,=†$&&@@#                                          #@@&&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,,,===†$@ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @$†===,,,,
,,=†$$$$@@                                          @@$$$$†=,,
,,,,=$$@@# @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ #@@$$=,,,,
,,,==††$&#                                          #&$††==,,,
,,=†$$&&&#                                          #&&&$$†=,,
,,,=††$&@@ trains  are  so  constructed  that  they @@&$††=,,,
,,=†$&@### have to  follow a set path. this path is ###@&$†=,,
,,=†$&@### called a "railway", which  is  comprised ###@&$†=,,
,,=†$&#### of  two metal rails, hence its nickname. ####&$†=,,
,,,,,,,=$@                                          @$=,,,,,,,
,,,,==$$@# 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 #@&$$†,,,,
,,=†$&@###         toward the train drivers!        ###@&$†=,,
,,=†$&&&&@                                          @&&&&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,=†$&@###                                          ###@&$†=,,
,,,,,==†&#                                          #&†==,,,,,