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