,&&&&&&&,,                                          ,&,,,,,,&,
,,&&&&&,,,                                          ,,,&&&&,,,
&,,&&&,,&&                                          ,&,,&&,,&&
,,,,&,,,,,                                          ,,,,,,,,,&
,&&,,,&&&&                                          &&&&&&&&,,
,,,,&,,&&&                   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!         &&&&,,,,&,
&&,,&&&&&&                                          &&&,,&&,,,
,,,,,&&&&,                                          &&,,,,,,&,
&&&&,,&&,,                                          &,,&&&&,,,
,&&,,,,,,,                                          ,,,,&&,,&,
,,,,&&&&&&                                          ,&&,,,,,,,
&&&,,&&&&&                                          ,,,,&&&&&&