?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Galp-(1->?)-?-D-Glcp-(1->?)[?-D-GlcpNAc-(1->?)-?-?-Hep?-(1->?)]-?-?-Hep?-(1->?)-D-Kdo(?->