alpha-D-Neup5Ac-(2->6)-beta-D-GalpNAc-(1->4)-beta-D-GlcpNAc-(1->2)-alpha-D-Manp-(1->?)[beta-D-GalpNAc-(1->4)-beta-D-GlcpNAc-(1->2)-alpha-D-Manp-(1->?)]-beta-D-Manp-(1->4)-beta-D-GlcpNAc-(1->4)[?-L-Fucp-(1->6)]-?-D-GlcNAc