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