bbbb bbbs bbin bblb bbls bibb bibi bibl bibs biin biis bili bill bils bilu bily bin- bini binn bins binu biny bis- bisl biss bisu bisy biys blin blis blls blni blss blub blus bly- blyn blys bnib bnin bnss bsin bsns bubb bubi bubs bubu buin buis buiu bulb buli bull buls bulu bunb buni bunn buns bunu busi buss busu busy buus buyi buyl buys buyu byil bysb bysi bysl byss bysy byul byun i-by ibis ibly ibns ibsn ibss ibus ibuy ibyi iiii iiis iisi iisu ilin ilis ill- illi ills illy ilni ilus iluy inby inis inly inni inns innu inny inss insu inui inul inun inus isbl isbn isil isin isis isls isly issi isss issu issy isus isyl isys iuiu iuss libs libu liii liin liis lilb lili lill lils lilu lily linn lins liny lisi liss lisu lisy liun lius liyl liyu llbs llll llyn lsbu lubs luby luin luis luli lull lulu luni lunn luns luny lusi luss luyi luys lyin lyly lynn lyns lys- lysi lysl lyss lyun lyyn n-ii nibi nibs niiu nili nill nils nilu nini ninl nins nisi nisl niss nisu niyi nlls nnls nnnn nnsl nnss nsin nsis nsls nssb nsss nsub nubi nubl nubs nuby nuin nuli null nunn nuns nuny nusi nusl nuss nusu nusy nuys nyll nyls nyny nyss nyul s-ib s-ii sbbs sbsi sbus sibi sibs sibu siby sil- sili sill sils silu sini sinn sins sinu siny sisi siss sisu sisy siui sius siyi siyu sl-i slib slln slsu slub slys snib snns snsy snub snus snys ssbn ssby ssin ssis ssns sssb sssi ssss sub- subb subi subl subs suin suis sul- suli sull sulu sun- sunb suni sunn suns sunu suny sus- susi suss susu susy suus suyi suyn suyu syis syl- syli syll syls syn- syns synu syny syss syun ubbi ubii ubis ubli ubls ubly ulli ully ulul ulus ulys uni- unii unin unis unni unns uns- unus usbl usbs usin usis uslu usnu ussb usss ussu ussy usui usul usun usus uulu uuni uusi uuuu uuyn uyin ybbs ybnl yili yill yins yiss ylli ylls ysby ysii yssu ysyb yubu yuin yuli yuls yulu yuns yuny yuyu yyyy