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