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