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