Andrew Plotkin writes:
>Or you could rewrite the whole thing to be more parallel to the HOP 
>construction (which is very clear). "A sideways piece tunnels down, and 
>surfaces upright at any spot in the line (where it was, or along the 
>direction it pointed). Stand up anything that it rises underneath."
This was how we explained things, and nobody had a problem with it.
-- 
       Joshua Kronengold (mneme@(io.com, labcats.org)) |\      _,,,--,,_  ,)
--^--  "Remember the Doom Team code!" says Tom.       /,`.-'`'   -,  ;-;;'
 /\\  	"You don't have to die just because some      |,4-  ) )-,_ ) /\     
/-\\\  	people think your existence is evil!"	     '---''(_/--' (_/-'