Give a concrete example of a PAO composite for three cards.

Take the Person of card 1, the Action of card 2, the Object of card 3, and stage them as one scene.

* Each of the 52 cards owns a fixed Person, Action and Object; three cards fuse into one scene. — Imk3nnyma, CC BY-SA 4.0, via Wikimedia Commons. *

Say your system has:

• A♠ → Person: James Bond
• 7♥ → Action: surfing
• K♦ → Object: a birthday cake

The composite for the sequence A♠ · 7♥ · K♦ is: James Bond surfing on a giant birthday cake. One vivid image at one locus encodes all three cards, in order. To decode, you read the slots back: the person was Bond (A♠), the action was surfing (7♥), the object was the cake (K♦).

Go deeper:

• Nelson Dellis — How to memorize a full deck of cards — walks a real card-triple into a single composite scene.