beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->2)[beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->4)]-alpha-D-Manp-(1->3)[alpha-D-NeupAc-(2->6)-beta-D-Galp-(1->4)[alpha-L-Fucp-(1->6)]-?-D-GalpNAc-(1->2)-?-D-Manp-(1->6)]-?-D-Manp-(1->4)[alpha-L-Fucp-(1->3)-alpha-L-Fucp-(1->3)]-D-GlcNAc(?->