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