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