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