&&&&,,&&&&                                          ,&&&&,,&&,
,,,&,&,,,&                                          &,,,&,&,&&
,,&&&&,,&&                                          &,,&&&&&,&
,&,,,&,&,,                                          &,&,,,,&&&
&&,,&&&&,,                                          &&&,,,&,,&
,&,&,,,&,&                  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!        ,&&,,,,,,,
&&,&,,&&,,                                          &,&,,,,,,&
,&&&,&,&,&                                          &&&,,,,,&,
&,,&&&&&&,                                          ,,&,,,,&&,
&,&,,,,,&,                                          ,&&,,,&,&&
&&&,,,,&&&                                          &,&,,&&&,,
,,&,,,&,,&                                          &&&,&,,&,&