suchen [und] SGB RO 89-[1234][0123456789][0123456789][0123456789]* or RO 89-5[012345678][0123456789][0123456789]* or RO 89-59[012345678][0123456789]* or RO 89-599[0123456789]* or RO 89-0[123456789][0123456789][0123456789]* or RO 89-00[123456789][0123456789]* or RO 89-000[123456789]*