Data:L11a383/Multivariable Alexander

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\frac{u^4 v^4-u^4 v^3-u^3 v^4+4 u^3 v^3-3 u^3 v^2-3 u^2 v^3+7 u^2 v^2-3 u^2 v-3 u v^2+4 u v-u-v+1}{u^2 v^2}