Opera Mugs
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Description: The word "TENET" originates from the Sator Square, a word square containing a five-word Latin palindrome that dates back to Ancient Rome. The puzzle is a five-by-five square made up of five 5-letter words written in five lines: SATOR, AREPO, TENET, OPERA, and ROTAS. In every direction the square is rotated, these five words appear both horizontally and vertically - a property that fits the time inversion concept.
