.&....&&&& .&.&&.&&..
&&...&...& &&&.&&.&..
.&..&&..&. ..&&.&&&.&
&&.&.&.&&& .&.&&..&&&
.&&&&&&... &&&.&.&...
&.....&... 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! .&&&.&&&..
&&.&..&&.& &..&&..&.&
.&&&.&.&&. &.&.&.&&&.
&..&&&&.&& &&&&&&..&.
&.&...&&.& .....&.&&&
&&&..&.&&. ....&&&...
..&.&&&.&& ...&..&..&