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