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