I have trouble with the way duolingo switches the noun-adjective order. I answered this same question with the opposite order to the audio translation in this one and it was correct. I was under the impression that adjectives mentioning an innate quality of something were placed before the noun (e.g. na longínqua China - in faraway China), whereas adjectives used to differentiate or specify the quality of a noun were placed afterwards (e.g. um livro interessante - an interesting book). Is the former used only in certain situations (like the written language) and the rest of the time the latter is used?