?-D-Neup5Gc-(2->3)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)[?-D-Neup5Gc-(2->3)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)]-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Galp-(1->?)-alpha-D-GalpNAc-(1->