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