[?-L-GalpNAc-(1->4)-[D-gro-?-L-3-deoxy-galNon2ulop5NGc-onic-(2->3)-?-L-Galp-(1->4)]-?-L-GlcpNAc-(1->6)-?-L-Galp-(1->3)-?-L-GalpNAc(1-]-