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