bbbb bbbs bbin bblb bbls bibb bibi bibl bibs biin biis bili bill bils bin- bini binn bins bis- bisl biss blin blis blls blni blss bnib bnin bnss bsin bsns ibis ibns ibsn ibss iiii iiis iisi ilin ilis ill- illi ills ilni inis inni inns inss isbl isbn isil isin isis isls issi isss libs liii liin liis lilb lili lill lils linn lins lisi liss llbs llll n-ii nibi nibs nili nill nils nini ninl nins nisi nisl niss nlls nnls nnnn nnsl nnss nsin nsis nsls nssb nsss s-ib s-ii sbbs sbsi sibi sibs sil- sili sill sils sini sinn sins sisi siss sl-i slib slln snib snns ssbn ssin ssis ssns sssb sssi ssss