?-D-Neup5Ac-(2→?)-?-D-GlcpNAc-(1→?)[?-D-Neup5Ac-(2→?)]-?-D-Galp-(1→?)-?-D-GlcpNAc-(1→?)[?-D-Neup5Ac-(2→?)]-?-D-Galp-(1→?)-?-D-GlcpNAc-(1→?)[?-D-Neup5Ac-(2→?)]-?-D-GalpNAc-(1→
