Sator squares

In high school, my mom showed me the Sator square: SATOR AREPO TENET OPERA ROTAS The oldest known copy was found on a wall in Pompeii: They are all real Latin five-letter words, the words going down read the same as the words going across, and the bottom three words are the top three words reversed (so the middle word is a palindrome). I understand that it is also a legitimate sentence in Latin? I…