Mnemonic images like Tolkien, tiles, or toolbox could be assigned under the major system.
For example, if one had chosen to represent AE as the physicist Albert Einstein one might use a corresponding action of writing on a blackboard.
Using the first two digits as a person and the second two as an action, one creates the image of Bill Gates delivering a roundhouse kick.
If the memorizer has also associated Santa Claus delivering presents with SC, then the chunk 2763 would represent Bill Gates delivering presents while 6339 would represent Santa Claus performing a roundhouse kick.
The remembered story, therefore, could be that Bill Gates delivered presents and then got roundhouse kicked by Santa Claus.
The Dominic System is typically used along with the method of loci, which allows the easy recall of the images in order by placing them in locations along a mental journey.