alpha-D-Glcp-(1->6)-alpha-D-GalpNAc-(1->3)[[2)-?-Tri-(?->6)-beta-D-Glcp-(1->4)]-alpha-L-FucpNAc-(1->3)[beta-D-GlcpNAc-(1->4)]-beta-D-GlcpNAc-(1->]n