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