?-D-GlcpN-(1->?)-L-gro-?-D-manHepp-(1->?)[L-gro-?-D-manHepp-(1->?)]-L-gro-?-D-manHepp-(1->?)?-D-Glcp-(1->?)[?-D-Glcp-(1->?)]-L-gro-?-D-manHepp-(1->?)-D-Kdo7PEtn(?->