version 5 by Michael Callaghan
Section 4 - Rules for yes/no questions
Yes/no question rules is a rulebook.
The yes/no question rules have outcomes exit (success), retry (failure) and parse (failure).
The first yes/no question rule (this is the invalid yes/no reply rule):
if the player's command does not match "[decision]":
if closed question mode is true:
if closed question mode is false:
The last yes/no question rule (this is the default yes/no question rule):