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