Yes, there is ambiguity if you want to achieve both readability and pronunciation accuracy. If you want to just encode the "data" or just get close (but not ex

Yes, there is ambiguity if you want to achieve both readability and pronunciation accuracy. If you want to just encode the "data" or just get close (but not exact) pronunciation, you can do reasonably well, though nowhere near as good as Cyrillic. If you want full parity, you just can't. Not unless you rewrite the entire language's grammar and re-teach people how to read Latin script in a way that is very different from how it is read in other languages.