?-D-Neup5Ac-(2->?)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)[?-D-Neup5Ac-(2->?)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)]-alpha-D-Manp-(1->6)-?-D-Manp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-GlcpNAc-(1->
