[beta-D-Glcp-(1->4)-D-gro-alpha-L-3-deoxy-galNon2ulop5NAc-onic-(2->8)-D-gro-alpha-L-3-deoxy-galNon2ulop5NAc-onic-(2->3)-beta-L-Galp-(1->3)-L-gro-alpha-D-manHepp-(1->3)-L-gro-alpha-D-manHepp6/7PEtn-(1->?)]-L-3-deoxy-manOct2ulo-onic(?->