β-D-Galp-(1→?)-β-D-GlcpNAc-(1→?)[β-D-Galp-(1→?)-β-D-GlcpNAc-(1→?)]-β-D-Galp-(1→3)[β-D-Galp-(1→3)-β-D-GlcpNAc-(1→6)]-?-D-GalNAc-ol
