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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.            £¤¤^//~¨¨¨
¨^~/^¤¤£££                                          £££¤¤^/~^¨
¨¨¨^~^¤¤¤£ 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. ###££¤^~^¨
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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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