beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N-(1->5)-beta-D-Ribf1N(1->