>>>>Then the proper question would be "which door is this"... but what if you wanted to ask what was the door of - is it wooden or iron or plastic... "kakva su ovo vrata?". "What kind of door is this" is not good enough, since I think you'd be PO'd both royally and republicly if you had tried all kinds of, say, fishing rods, and you ask "do you have any other kind", and they give you the same old just made of a different type of plastic. That's not a different kind, is it?
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>>>You'd ask, "Whats' this door made of?"
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>>And get the answer "wooden"?
>
>No, and get the answer, "wood".

So, not the question I was looking for.