[beta-L-Galp-(1->4)-beta-D-GlcpNAc-(1->2)-alpha-D-Glcp-(1->6)-beta-L-Galp-(1->4)-beta-D-GlcpNAc-(1->2)-alpha-D-Glcp-(1->3)-beta-D-Glcp-(1->4)]-?-D-GlcpNAc(1->