So there could be a Xi'an that speaks fluent English?

Yes. There is one, actually. Professor Tai.

Oh, absolutely. Yeah, Professor Tai from the language overview document is extremely fluent in English. I mean, he might have a slight accent. I haven't heard him talk yet. We haven't recorded his voice. So he might have a slight accent. They do have a very, very hard time voicing a TH. So it's hard for them to say "there". They're more likely to pronounce "there" as [a different sound]. It's very hard for them to make that sound. They don't say "the cat", they say [something else]. They have to find another sound because, for some reason which is not yet completely clear to me either, they have a really hard time pronouncing voiced TH, a "the".