Refinement for Item #3 (The Five Elements):
The Course Book identifies the 5th element specifically as a named or court-appointed trustee. It notes that while a settlor must manifest intent, the trust itself requires a fiduciary to hold the "res" to be valid.
Refinement for Item #5 (Constructive Trusts):
The text explicitly adds "Mistake" as a ground for this remedy. Its purpose is to restore title where equity detects a "wound to conscience" and binds the enriched party as a trustee.
Correction for Item #11 (Rule Against Perpetuities):
The text strictly follows traditional law: there is no "wait and see". If there is any possibility an interest vests after the perpetuities period, it is void from the start.