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