suchen [und] SGB KS 56-[12][0123456789][0123456789][0123456789]* or KS 56-3[0123][0123456789][0123456789]* or KS 56-34[012345678][0123456789]* or KS 56-349[0123456789]* or KS 56-050[0123456789]* or KS 56-05[123456789][0123456789]* or KS 56-0[6789][0123456789][0123456789]*