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