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