example16 := (-78+80*x^3+69*x^2*y+76*x^2-25*x*y^2-26*x*y-7*x-93*y^3-36*y^2+53*
y)/(69-67*x^3+88*x^2*y-5*x^2-36*x*y^2-x*y+31*x+7*y^3-42*y^2-73*y)*((14+24*x^3+
55*x^2*y-49*x^2+86*x*y^2-23*x*y+17*x+31*y^3+75*y^2+36*y)/(-90-55*x^3-x^2*y+23*
x^2-83*x*y^2-26*x*y+35*x+34*y^3-14*y^2-92*y))^(1/2)*exp(1);