beta-D-Glcp-(1->6)-beta-D-Glcp-(1->3)-?-Tri-(?->3),beta-D-Glcp-(1->6)-beta-D-Glcp-(1->3)-?-Tri-(?->3)beta-D-Glcp-(1->6)-beta-D-Glcp-(1->3)-?-Tri-(?->3)]-?-Tri(?->