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