Data:L11a380/Multivariable Alexander

$\frac{u^4 v^2-u^4 v-u^3 v^4+4 u^3 v^3-5 u^3 v^2+3 u^3 v-u^3+2 u^2 v^4-6 u^2 v^3+7 u^2 v^2-6 u^2 v+2 u^2-u v^4+3 u v^3-5 u v^2+4 u v-u-v^3+v^2}{u^2 v^2}$