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