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