Right, that's the theory, but what's another concrete Godel sentence that's not a twist on the standard Godel sentence? (As an analogy, in theory there are ton

Right, that's the theory, but what's another concrete Godel sentence that's not a twist on the standard Godel sentence? (As an analogy, in theory there are tons of different ways to construct non-measurable sets, but in practice all examples come down to some quotient of a nonzero measure set and a measure zero set, like [0,1]/Q.)