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