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