In the visiting room there are multiple signs on the wall that have the word welcome written in various languages. The Greek version is wrong. It reads 'kalosorisma' which translates to the noun for "welcome"/"welcoming". It should actually read 'kalosirthate' which means "you're welcome".
In the room with all the phrases on the wall in various languages, the Arabic one is written in the individual letters left-to-right instead of right-to-left.