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