?-D-Galp-(1->?)-?-D-Galp-(1->?)-?-D-GalpNAc-(1->?)[?-D-NeupAc-(2->?)]-?-D-Galp-(1->?)-?-?-Hepp-(1->?)[?-D-Glcp-(1->?)]-?-?-Hepp-(1->?)-D-Kdn(?->