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