@,,,@,@@@,                                          ,,@,@,@,,@
@,,@@,,@@,                                          ,@@,@,@,@,
@,@,@,@,@,                                          ,,@,@,@,@,
@,@,@,@,@,                                          ,@@,@,@,@,
@,@,@,@,@,                                          ,,@,@,@,@,
@,@,@,@,@,                  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!        ,@@,@,@,@,
@,@,@,@,@,                                          ,,@,@,@,@,
@,@,@,@,@,                                          ,@@,@,@,@,
@,@,@,@,@,                                          ,,@,@,@,@,
@,@,@,@,@,                                          ,@@,@,@,@,
@,@,@,@,@,                                          ,,@,@,@,@,
@,@,@,@,@,                                          ,@@,@,@,@,