beta-D-Galp-(1->6)-beta-D-Galp-(1->6)-beta-D-Galp-(1->6)[3)-beta-D-Galp-(1->]n[alpha-L-Araf-(1->3)-beta-D-Galp-(1->3)-beta-D-Galp-(1->6)]-[3)-beta-D-Galp-(1->]n