alpha-D-NeupAc-(2->3)-beta-D-Galp-(1->3)[beta-D-Galp-(1->3/4)-beta-D-GlcpNAc-(1->3/6)-beta-D-Galp-(1->3/4)-beta-D-GlcpNAc-(1->3/6)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->6)]-?-D-GalNAc-(?->
