beta-D-GlcpNAc-(1->?)[?-L-Araf-(1->?)]-alpha-D-Manp-(1->3)beta-D-GlcpNAc-(1->?)[?-L-Araf-(1->?)]-alpha-D-Manp-(1->6)[?-D-Xylp-(1->?)]-beta-D-Manp-(1->]