The realization space is
  [1   0   1   1   0   1    1    0   1    1]
  [0   1   1   2   0   0    0    1   1    2]
  [0   0   0   0   1   1   x1   -1   1   x1]
in the multivariate polynomial ring in 1 variable over ZZ
within the vanishing set of the ideal
Ideal (4*x1^3 - 6*x1^2 + 2*x1)
avoiding the zero loci of the polynomials
RingElem[x1 - 2, x1 - 1, x1, 2, x1 + 2, x1 + 1]