"A magas tanár nem angol, hanem magyar."

Translation: The tall teacher is not English, but Hungarian.

[Crimson_Aelch]

I wrote "The tall teacher is not English, but rather Hungarian" and it wasn't accepted.

[Liggliluff]

You can report it

[Elon_the_Hittite]

It is now, 19/09/15.

[Harrison329274]

While "the tall teacher is not English, but Hungarian" is correct, it feels really unnatural to me as a native English speaker. I don't think this syntax is commonly used - at least not in America. I think the way I would say this is "The tall teacher is Hungarian, not English." However, I got marked wrong when I typed this in, I've reported it, but wanted to call it out here too in case others ran into it.