alpha-D-Glcp-(1->4)-beta-D-Galp-(1->6)-beta-D-Glcp-(1->3)[alpha-D-Glcp-(1->6)[3)-beta-D-GalpNAc-(1->4)-alpha-D-NeupAc-(2->6)-alpha-D-Glcp-(1->6)]-beta-D-Galp-(1->]n