?-D-Manp-(1→?)-?-D-Manp-(1→?)[?-D-Manp-(1→?)]-?-D-GlcpNAc-(1→?)[?-D-Manp-(1→?)[?-D-Manp-(1→?)]-?-D-GlcpNAc-(1→?)]-?-D-GlcpNAc-(1→