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