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