After a lifetime of searching, you have discovered the legendary city of El Dorado. You are approached by three inhabitants. You know from your research that these are the three highest ranking members of their society: the High Priest, who always tells the truth, the Chieftain, who always lies, and the Royal Advisor, who answers yes to every question. They know each other's identities, but you do not.
Legend has it that the El Dorado people will only answer yes/no questions which are directed at a single person, and will always respond with the single word for "yes" or "no" in their language. The problem is, you don't speak the El Dorado language. From overhearing the citizens chattering, you've surmised that the only syllables are in their language are "el," "do," and "ra." Therefore, the words for yes and no are something like "ra-el" and "do-el-do-do," but you have no idea precisely what.
With just three questions, determine which person is which.
Remark: The language constraint in this puzzle is similar to, but more difficult than, the variant where you know the words for yes and no are "ja" and "da" in some order.