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.,=†*$££## trains  are  so  constructed  that  they ##££$*†=,.
.,=†*$££## have to follow a set  path. this path is ##££$*†=,.
.,=†*$££## called a  "railway", which  is comprised ##££$*†=,.
.,=†*$££££ of two metal rails, hence its  nickname. ££££$*†=,.
.....,=*££                                          ££*=,.....
.,=†*$££## because the  low  friction  between  the ##££$*†=,.
.,=†*$££££ wheels  of the train and the rail metal, ££££$*†=,.
.,=†***$££ there are limits  for how  acute a curve ££$***†=,.
.,=†$££### can  be, and  even more so  for how much ###££$†=,.
.,=†*££### 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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