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