,@@,@@@@@,                                          ,@@@,,@,@,
@,@@,,,,@,                                          @,,@,@@@@,
@@,@,,,@@,                                          @,@@@,,,@@
,@@@,,@,@@                                          @@,,@,,@,,
@,,@,@@@,@                                          ,@,@@,@@,,
@,@@@,,@@,                  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!        @@,,,,,,,@
@,,@,@,@@@                                          ,@,,,,,,@,
@,@@@@@,,@                                          @@,,,,,@@@
@@,,,,@,@,                                          ,@,,,,@,,,
,@,,,@@@@@                                          @@,,,@@,,@
@@,,@,,,,,                                          ,@,,@,@,@@
,@,@@,,,,,                                          @@,@@@@@,,