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