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