?-D-Neup5Ac-(2->?)-?-D-Galp-(1->?)[?-D-Neup5Ac-(2->?)]-?-D-GlcpNAc-(1->?)[?-D-Neup5Ac-(2->?)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)]-?-D-Galp-(1->?)-?-D-Glcp-(1->
