#,##,,#,##                                          ,###,##,##
#,###,,,##                                          ,#,#,##,#,
,,#,##,,#,                                          ,,,,,##,,,
,,,,###,,,                                          ,,,,,###,,
,,,,#,##,,                                          ,,,,,#,##,
,,,,,,###,                   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!        ###,,,###,
,,,,,#,##,                                          #,##,,#,##
#,,,,,,###                                          ,,###,,,##
##,,,,,#,#                                          ,,#,##,,#,
###,,,,,,#                                          ,,,,###,,,
#,##,,,,,#                                          ,,,,#,##,,
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