Book 2 - Properties
First when play begins (this is the check revelation object integrity rule):
repeat with item running through primary things:
if the item equals a primary thing (called the counterpart):
say "WARNING: [The item] equals [the counterpart] and neither of them are marked secondary."
Checking properties is an action out of world.
Understand "prop" as checking properties.
Carry out checking properties:
say "Dirty things: [the list of dirty things].[paragraph break]";
say "Clean things: [the list of clean things].[paragraph break]";
say "Small things: [the list of small things].[paragraph break]";
say "Big things: [the list of big things].[paragraph break]";
say "Huge things: [the list of huge things].";