[alpha-D-GlcpN-(1->7)-L-gro-alpha-D-manHepp-(1->7)-alpha-D-Glcp-(1->3)-alpha-D-Glcp-(1->3)-L-gro-alpha-D-manHepp4PPEtn-(1->3)]-L-gro-alpha-D-manHepp4PPEtn-(1->5)-L-3-deoxy-manOct2ulo-onic(?->