The realization space is
  [1   1   x2 - 1   0   0   1    1     x2 - 1    0   1    1]
  [1   0       x2   1   0   1    0         x2    1   2    2]
  [0   0        0   0   1   1   x2   2*x2 - 2   x1   2   x2]
in the multivariate polynomial ring in 2 variables over ZZ
avoiding the zero loci of the polynomials
RingElem[x2 - 2, 2, x1 - x2, 2*x1 - x2, x1*x2 - 2*x1 - x2^2 + x2, x1, x1 - x2 + 1, x2, x2 - 1, x1 - 2, x1 - 1, x1*x2 - 2*x1 - 2*x2 + 2, 2*x1 + x2 - 2, x2 + 2, x1 - 2*x2 + 2, x1*x2 - 2*x2 + 2, x1*x2 + x2^2 - 3*x2 + 2, x1 + x2, x1 + x2 - 1, 3*x2 - 2]