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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 ¨£££¨¨¨¨£¨
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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 ¨¨¨¨¨¨£¨¨¨
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