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