D-gro-alpha-L-3-deoxy-galNon2ulop5NAc-onic-(2->7)-D-gro-alpha-L-3-deoxy-galNon2ulop5NAc-onic-(2->3)-?-L-Galp-(1->3)-?-L-Galp-(1->4)-beta-L-GlcpNAc(1->