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