##¶&%^†«..                                          ..«†^%&¶##
##¶&%^†«..                                          ..«†^%&¶##
##¶&%^†«..                                          ..«†^%&¶##
¶%†««.....                                          .....««†%¶
¶¶%†«.....                                          .....«†%¶¶
#¶%%%^†«..                  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!         ..«†^%&¶##
&&%%†«....                                          ....«†%%&&
¶¶¶&%^†«..                                          ..«†^%&¶¶¶
&&&%†«....                                          ....«†%&&&
##¶&%^†«..                                          ..«†^%&¶##
#&%^^«....                                          ....«^^%&#
¶%†«......                                          ......«†%¶