...##....#                                          #.#..#..##
..#.#...#.                                          #.#.##.#.#
.##.#..##.                                          #.#..#.#.#
..#.#.#.#.                                          #.#.##.#.#
.##.#.#.#.                                          #.#..#.#.#
..#.#.#.#.                  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!         #.#.##.#.#
.##.#.#.#.                                          #.#..#.#.#
..#.#.#.#.                                          #.#.##.#.#
.##.#.#.#.                                          #.#..#.#.#
..#.#.#.#.                                          #.#.##.#.#
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