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.:«=^£££## 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. ##£££^=«:.
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.:«=^£££## 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.            ##£££^=«:.
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.....:=£££ 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.                  £££==::...
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.:«=^£££## 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.          ##£££^=«:.
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.:«=^£££## sometimes, trains have to stop and  wait ##£££^=«:.
.....:«^£# for something to happen,  far away. this #£^«:.....
..::«=££££ is  signaled  by red  or  green  lights. ££££=«::..
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.....««^££ 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!        ##£££^=«:.
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