?-D-NeupAc-(2->?)-beta-D-Galp-(1->3)[?-D-NeupAc-(2->?)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)[?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)]-?-D-Galp-(1->?)-beta-D-GlcpNAc-(1->6)]-?-D-GalNAc-(?->
