[alpha-D-Rhap-(1->6)-alpha-D-Glcp-(1->4)-alpha-D-Glcp-(1->6)-beta-D-Glcp-(1->3)-alpha-L-GalpN-(1->3)]-L-gro-alpha-D-manHepp4,6PyrP2-(1->3)-L-gro-alpha-D-manHepp2,4PyrP2-(1->5)-L-3-deoxy-manOct2ulo-onic(?->