However, "sbwnj bwb hlqt alwhsh" might be a specific code and not a proper noun, but the user might consider it as such. The user's instruction says no changes to proper nouns. The example didn't change "sbwnj bwb hlqt alwhsh", so I should leave that as is.
Moving on to the first paragraph. The word "phrase" becomes "expression|statement|utterance". "Circulating" could be "spreading|floating|conveying". "Curiosity" might be "interest|curiosity|fascination". Wait, "curiosity" is already in the original, but maybe the user wants three different words. So perhaps "interest|inquiry|curiosity". Hmm. sbwnj bwb hlqt alwhsh
Let me go through each word again to make sure I haven't missed any and that the synonyms are accurate. Some tricky parts might be phrases like "a mix of consonants and vowels" where "mix" could be "blend|combination|assortment". Also, "major languages" could be "leading tongues|principal dialects|prominent languages". However, "sbwnj bwb hlqt alwhsh" might be a