Classification of steiner surfaces

	steiner01 Equation: x^2*y^2+x^2*z^2+y^2*z^2-x*y*z
	steiner02 Equation: x^2*y^2-x^2*z^2+y^2*z^2-x*y*z
	steiner03 Equation: x*y*z^2+x*y-x^2-z^4-2*z^2+1
	steiner04 Equation: x*z^2-y^2+z^4
	steiner05 Equation: x^4+y^2+z^2-2*x^2*y-2*x^2*z+2*y*z-4*y*z
	steiner06 Equation: y^4+z^4+2*y*z^2-x
	steiner07 Equation: x^2*y^2+z^2 -2*x*z^2
	steiner08 Equation: x*y*z-y^2+z^2
	steiner09 Equation: x^2-y*z^2
	steiner10 Equation: y*z-x+z^3