Schema Errata Test Pages

One of the pieces of feedback for Schema that's come around a few times is that pages 31-33 (the condition cluster stuff) are not terribly intuitive or that a reader can't see the use for them.  So, here are possible replacements for those three pages, which I hope make their utility apparent and intuitive. 

Please let me know if these are clearer and more useful for you, so I know if I should swap them in!

...Clearer?