[beta-D-Glcp-(1->4)-[L-gro-alpha-D-manHepp-(1->7)-alpha-D-GlcpN-(1->4)-alpha-L-GalpA-(1->3)-L-gro-alpha-D-manHepp-(1->3)]-L-gro-alpha-D-manHep?-(1->5)]-L-3-deoxy-manOct2ulo-onic(?->