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