Q085 :
-a^4*b^2*c^2*x^3*y + 3*a^2*b^4*c^2*x^3*y - 2*b^6*c^2*x^3*y -   2*a^2*b^2*c^4*x^3*y + 2*b^2*c^6*x^3*y - a^6*c^2*x^2*y^2 +   5*a^4*b^2*c^2*x^2*y^2 - 5*a^2*b^4*c^2*x^2*y^2 + b^6*c^2*x^2*y^2 +   a^2*c^6*x^2*y^2 - b^2*c^6*x^2*y^2 + 2*a^6*c^2*x*y^3 -   3*a^4*b^2*c^2*x*y^3 + a^2*b^4*c^2*x*y^3 + 2*a^2*b^2*c^4*x*y^3 -   2*a^2*c^6*x*y^3 + a^4*b^2*c^2*x^3*z + 2*a^2*b^4*c^2*x^3*z -   2*b^6*c^2*x^3*z -   3*a^2*b^2*c^4*x^3*z + 2*b^2*c^6*x^3*z - a^2*b^4*c^2*x^2*y*z +   2*b^6*c^2*x^2*y*z + a^2*b^2*c^4*x^2*y*z - 2*b^2*c^6*x^2*y*z -   2*a^6*c^2*x*y^2*z + a^4*b^2*c^2*x*y^2*z - a^2*b^2*c^4*x*y^2*z +   2*a^2*c^6*x*y^2*z + 2*a^6*c^2*y^3*z - 2*a^4*b^2*c^2*y^3*z -   a^2*b^4*c^2*y^3*z + 3*a^2*b^2*c^4*y^3*z - 2*a^2*c^6*y^3*z +   a^6*b^2*x^2*z^2 - a^2*b^6*x^2*z^2 - 5*a^4*b^2*c^2*x^2*z^2 +   b^6*c^2*x^2*z^2 +   5*a^2*b^2*c^4*x^2*z^2 - b^2*c^6*x^2*z^2 + 2*a^6*b^2*x*y*z^2 -   2*a^2*b^6*x*y*z^2 - a^4*b^2*c^2*x*y*z^2 + a^2*b^4*c^2*x*y*z^2 +   a^6*b^2*y^2*z^2 - a^2*b^6*y^2*z^2 - a^6*c^2*y^2*z^2 +   5*a^2*b^4*c^2*y^2*z^2 - 5*a^2*b^2*c^4*y^2*z^2 + a^2*c^6*y^2*z^2 -   2*a^6*b^2*x*z^3 + 2*a^2*b^6*x*z^3 + 3*a^4*b^2*c^2*x*z^3 -   2*a^2*b^4*c^2*x*z^3 - a^2*b^2*c^4*x*z^3 - 2*a^6*b^2*y*z^3 +   2*a^2*b^6*y*z^3 + 2*a^4*b^2*c^2*y*z^3 - 3*a^2*b^4*c^2*y*z^3 +   a^2*b^2*c^4*y*z^3 = 0