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A block of cubes. This was a simple (simplistic) model of an organism with lots of bits next to each other where navigation and orientation needs to occur as a sientist needs to browse images of said organism. It was made only to test out some ideas. it only asserts the cube in front of, to the left of and t the top of any given cube. Inverses get the other three faces. The cubes on the edges and corners are done with property chains. Unfortunately, the many routes to a cube cannot be accommodated as they make cycles.