[beta-L-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-L-Galp-(1->4)-beta-D-Glcp-(1->4)-[alpha-D-Glcp-(1->3)-alpha-D-GlcpNAc-(1->2)-L-gro-alpha-D-manHep?7P-(1->3)]-L-gro-alpha-D-manHep?-(1->5)]-?-L-3-deoxy-manOct2ulop-onic(2->