[beta-L-Galp-(1->7)-D-gro-alpha-L-manHepp-(1->2)-D-gro-alpha-L-manHepp-(1->2)]-L-gro-alpha-D-manHepp-(1->3)-L-gro-alpha-D-manHepp7PEtn-(1->5)-L-3-deoxy-manOct2ulo-onic(?->