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