Data:L11n147/Multivariable Alexander

$-v^{2}u^{4}+vu^{4}+2v^{2}u^{3}-vu^{3}+u^{3}-2v^{2}u^{2}+vu^{2}-2u^{2}+v^{2}u-vu+2u+v-1$