?-D-GalpNAc-(1->?)-?-D-Galp-(1->?)[?-D-Glcp-(1->?)]-L-gro-?-D-manHepp-(1->?)?-D-Glcp-(1->?)[?-D-Galp-(1->?)]-L-gro-?-D-manHepp-(1->?)-D-Kdo(?->