Data:L10a166/Multivariable Alexander

${\frac {-t(1)t(4)^{2}t(3)^{2}-t(2)t(4)^{2}t(3)^{2}+t(4)^{2}t(3)^{2}+t(1)t(4)t(3)^{2}-t(1)t(2)t(4)t(3)^{2}+2t(2)t(4)t(3)^{2}-t(4)t(3)^{2}+2t(1)t(4)^{2}t(3)-t(1)t(2)t(4)^{2}t(3)+t(2)t(4)^{2}t(3)-t(4)^{2}t(3)+t(1)t(3)-t(1)t(2)t(3)+2t(2)t(3)-3t(1)t(4)t(3)+2t(1)t(2)t(4)t(3)-3t(2)t(4)t(3)+2t(4)t(3)-t(3)-t(1)+t(1)t(2)-t(2)+2t(1)t(4)-t(1)t(2)t(4)+t(2)t(4)-t(4)}{{\sqrt {t(1)}}{\sqrt {t(2)}}t(3)t(4)}}$