##@#$†^~,.                                          .,~^†$#@##
#@#$†^~,..                                          ..,~^†$#@#
@#$†^~,...                                          ...,~^†$#@
#$†^~,....                                          ....,~^†$#
@#$†^~,...                                          ...,~^†$#@
#@#$†^~,..                   rails                  ..,~^†$#@#
##@#$†^~,.                                          .,~^†$#@##
#@#$†^~,..                                          ..,~^†$#@#
@#$†^~,... ######################################## ...,~^†$#@
#$†^~,....                                          ....,~^†$#
@#$†^~,... ######################################## ...,~^†$#@
#@#$†^~,..                                          ..,~^†$#@#
##@#$†^~,.                                          .,~^†$#@##
#@#$†^~,.. trains  are  so  constructed  that  they ..,~^†$#@#
@#$†^~,... have to follow a set path. this path  is ...,~^†$#@
#$†^~,.... called  a "railway", which  is comprised ....,~^†$#
@#$†^~,... of two metal rails, hence its  nickname. ...,~^†$#@
#@#$†^~,..                                          ..,~^†$#@#
##@#$†^~,. because the  low  friction  between  the .,~^†$#@##
#@#$†^~,.. wheels of the train  and the rail metal, ..,~^†$#@#
@#$†^~,... there are limits for how  acute  a curve ...,~^†$#@
#$†^~,.... can be,  and even more  so for how  much ....,~^†$#
@#$†^~,... the  ground  under  the  rails   can  be ...,~^†$#@
#@#$†^~,.. sloped. thus a  railway is often not led ..,~^†$#@#
##@#$†^~,. on top of hills, rather through  them in .,~^†$#@##
#@#$†^~,.. tunnels   (if   they  are   large),   or ..,~^†$#@#
@#$†^~,...            artificial chasms.            ...,~^†$#@
#$†^~,....                                          ....,~^†$#
@#$†^~,... there will be  trees  on the side of the ...,~^†$#@
#@#$†^~,.. rails, but  not too close,  or they will ..,~^†$#@#
##@#$†^~,. be  cut down by  the  railway  janitors. .,~^†$#@##
#@#$†^~,.. there  will  be  plains,  and  bodies of ..,~^†$#@#
@#$†^~,...                  water.                  ...,~^†$#@
#$†^~,....                                          ....,~^†$#
@#$†^~,... trains  go by  day  and  by night. along ...,~^†$#@
#@#$†^~,..       the way, there is information      ..,~^†$#@#
##@#$†^~,. scattered,  often put on top  of  poles, .,~^†$#@##
#@#$†^~,.. to be interpreted by the train  drivers. ..,~^†$#@#
@#$†^~,... different  parts  of  the  railway  have ...,~^†$#@
#$†^~,....         different speed limits.          ....,~^†$#
@#$†^~,...                                          ...,~^†$#@
#@#$†^~,.. sometimes, trains have to stop and  wait ..,~^†$#@#
##@#$†^~,. for  something to happen, far away. this .,~^†$#@##
#@#$†^~,.. is signaled  by  red  or  green  lights. ..,~^†$#@#
@#$†^~,...                                          ...,~^†$#@
#$†^~,....                 ########                 ....,~^†$#
@#$†^~,...                                          ...,~^†$#@
#@#$†^~,.. many people  follow  the rails by  foot. ..,~^†$#@#
##@#$†^~,. often  this  proves to  be  the  shorter .,~^†$#@##
#@#$†^~,.. path between  two points.  however  this ..,~^†$#@#
@#$†^~,... is  frowned  upon,  and   very  impolite ...,~^†$#@
#$†^~,....         toward the train drivers!        ....,~^†$#
@#$†^~,...                                          ...,~^†$#@
#@#$†^~,..                                          ..,~^†$#@#
##@#$†^~,.                                          .,~^†$#@##
#@#$†^~,..                                          ..,~^†$#@#
@#$†^~,...                                          ...,~^†$#@
#$†^~,....                                          ....,~^†$#