[layer8]

It depends on the word, and possibly even on dialect. There isn’t a 1:1 mapping between characters and vowels. Vowels are fundamentally a phonetic concept, not a graphemic one.

This is also why Unicode doesn’t have a “vowel” character property. Otherwise you could use a regex like `\p{Vowel}`.

[csb6]

Yes, this is true. Many people seem to think of words as written text and not as spoken words, so they focus on analyzing the characters is a word and not how it sounds.

I had a linguistics professor say something like “Writing is parasitic on speech”