?-D-Galp-(1->?)-?-D-Galp-(1->?)-?-D-Galp-(1->?)-?-D-GalpNAc-(1->?)[?-D-Neup5Ac-(2->?)-?-D-Neup5Ac-(2->?)]-?-D-Galp-(1->?)-?-D-Glc
