K547 :
-a^8*b^4*c^2*x^2*y + a^6*b^4*c^4*x^2*y + a^4*b^6*c^4*x^2*y -   a^2*b^8*c^4*x^2*y + a^4*b^4*c^6*x^2*y - a^4*b^2*c^8*x^2*y +   a^4*b^8*c^2*x*y^2 + a^8*b^2*c^4*x*y^2 - a^6*b^4*c^4*x*y^2 -   a^4*b^6*c^4*x*y^2 - a^4*b^4*c^6*x*y^2 + a^2*b^4*c^8*x*y^2 +   a^4*b^8*c^2*x^2*z + a^8*b^2*c^4*x^2*z - a^6*b^4*c^4*x^2*z -   a^4*b^6*c^4*x^2*z - a^4*b^4*c^6*x^2*z + a^2*b^4*c^8*x^2*z +   a^8*b^6*x*y*z -   a^6*b^8*x*y*z + a^8*b^4*c^2*x*y*z - a^4*b^8*c^2*x*y*z -   a^8*b^2*c^4*x*y*z + a^2*b^8*c^4*x*y*z - a^8*c^6*x*y*z + b^8*c^6*x*y*z +   a^6*c^8*x*y*z + a^4*b^2*c^8*x*y*z - a^2*b^4*c^8*x*y*z -   b^6*c^8*x*y*z - a^8*b^4*c^2*y^2*z + a^6*b^4*c^4*y^2*z +   a^4*b^6*c^4*y^2*z - a^2*b^8*c^4*y^2*z + a^4*b^4*c^6*y^2*z -   a^4*b^2*c^8*y^2*z - a^8*b^4*c^2*x*z^2 + a^6*b^4*c^4*x*z^2 +   a^4*b^6*c^4*x*z^2 -   a^2*b^8*c^4*x*z^2 + a^4*b^4*c^6*x*z^2 - a^4*b^2*c^8*x*z^2 +   a^4*b^8*c^2*y*z^2 + a^8*b^2*c^4*y*z^2 - a^6*b^4*c^4*y*z^2 -   a^4*b^6*c^4*y*z^2 - a^4*b^4*c^6*y*z^2 + a^2*b^4*c^8*y*z^2 = 0