version 7 by Jon Ingold
Chapter - Should the game suggest?
outcomes from this indicate probability of a certain action pattern
impossible will remove it from the list entirely if the parser is guessing
always impossible will remove it from the list of suggestions provided even when the player types something
The Should the game suggest rules are a rulebook.
The Should the game suggest rules have outcomes it is an excellent suggestion, it is a good suggestion, it is a passable suggestion, it is a bad suggestion (failure - the default) and never.