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