The realization space is
  [1    1   1   0   0   1    1   1         0         1         1]
  [1   x1   0   1   0   1   x1   0         1   -x1 + 2   -x1 + 2]
  [0    0   0   0   1   1   x1   2   -x1 + 2         2        x1]
in the multivariate polynomial ring in 1 variable over ZZ
within the vanishing set of the ideal
Ideal (x1^2 - 4*x1 + 2)
avoiding the zero loci of the polynomials
RingElem[x1 - 1, x1 - 2, 2, 2*x1^2 - 7*x1 + 4, x1 - 4, x1 - 3, x1, x1^2 - 3*x1 + 1, 2*x1 - 1, x1 + 2, x1^2 - 2*x1 - 2, x1 + 1, x1^2 - 2*x1 + 2, 3*x1 - 2]