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