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