beta-D-Neup5Ac-(2->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->2/4)[beta-D-Neup5Ac-(2->6)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->2/4)]-beta-D-Manp-(1->3/6)[alpha-D-Neup5Ac-(2->6)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->2)-beta-D-Manp-(1->3/6)]-beta-D-Manp-(1->4)-?-D-GlcNAc
