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