As I said earlier, there are no tax treaties that are alike. But essentially they follow our policy. Obviously, withholding stands out in the case of Turkey. I've already talked about the provision of services.
One other thing--and it is not major--is that in the case of the selling of insurance across the border, we would insist that it requires a permanent establishment to authorize taxation. But some of those countries prefer that simply the selling of insurance is sufficient to trigger taxation. So it is not in accordance with what we do but it's part of the give and take of treaty negotiations.
But by and large those three conventions follow our model and the OECD model.