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