?-D-NeupAc-(2->?)-?-?-Hexp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Manp-(1->?)[?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Manp-(1->?)]-?-D-GlcpNAc-(1->?)-?-D-GlcNAc-(?->