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