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##@£@†=«-. 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. .-«=†@£###
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##@£@†=«-. 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. ...-«=†££#
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###@£@=«-. ££££££££ .-«=@£@###
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##@£@†=«-. 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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