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