?-D-Neup5Ac-(2->3)-?-D-Galp-(1->?)-?-D-GlcpNAc-(1->?)-?-D-Manp-(1->?)-?-D-Manp-(1->?)-?-D-GlcpNAc-(1->?)[?-L-Fucp-(1->?)]-?-D-GlcpNAc-(1->
