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