?-D-Xylp-(1->?)-?-D-Xylp-(1->?)[?-L-Araf-(1->?)]-?-D-Xylp-(1->?)-?-D-Xylp-(1->?)[?-L-Araf-(1->?)]-?-D-Xylp-(1->?)-?-D-Xylp-(1->?)-?-D-Xylp(1->