Data:L11a363/Multivariable Alexander

$-\frac{u^4 v^2-u^4 v+2 u^3 v^3-6 u^3 v^2+4 u^3 v-u^3+u^2 v^4-6 u^2 v^3+9 u^2 v^2-6 u^2 v+u^2-u v^4+4 u v^3-6 u v^2+2 u v-v^3+v^2}{u^2 v^2}$