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