beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3),beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3),beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3),beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->2)[beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->?)]-alpha-D-Manp-(1->]
