bbbb bbbs bbdd bbin bdii bdin bdsd bibb bibi bibs bidi bids bidu biin biis bin- bind bini binn bins bint binu bis- bisd biss bist bisu bitd bits bitt bitu bnib bnin bnss bsbd bsin bsnd bsns bssd bsts btdt btss bttb btus bubb bubi bubs bubu budb budd budi buds budu buid buin buis buit buiu bunb bund buni bunn buns bunt bunu busi buss bust busu but- buti buts butt buus dbit dbss dbtt dbus dddd ddss ddts ddub dibb dibs didi dids didu diii diis din- dini dinn dins dint dinu dis- disd disi diss dist diti dits ditt dius dnis dntt dnus dnut dssi dssn dsst dstn dsts dtnb dtss dub- dubb dubs dubu dudd duds dudu duid duin duis duit dunn duns dunt dusi dust duts duut ibid ibis ibns ibsn ibss ibtb ibts ibus idid idin idis idss idts idub idun idus iiii iiis iiit iisd iisi iist iisu iitt inbd ind- indi inds indu inid inis init inni inns innu inss inst insu intd inti intn ints intu inui inun inus isbd isbn isbt isdb isdn isds isin isis isit isnt issi isss issu istd isti ists isus itbs itin itis itsi itsu iuds iuiu iusd iuss iust n-ii nbti nddb ndnt ndsi ndss ndut nibi nibs nidd nidi nids niit niiu nind nini nins nisd nisi niss nist nisu nitb niti nits nndb nnit nnnn nnss nntn nsds nsdt nsin nsis nssb nsss nstd nsts nstu nsub ntds ntis ntnd ntnu ntsb ntss ntsu ntui nubi nubs nudd nudi nuin nuit nunn nuns nunt nusi nuss nust nusu nuts nutt nutu s-ib s-ii sbbs sbds sbsd sbsi sbst sbtn sbus sdds sdib sdss sdsu sibi sibs sibu sidd sidi sids siit sind sini sinn sins sint sinu sisd sisi siss sist sisu sit- sitd siti sitn sits sitt situ siui sius siut snib snid snit snns snsd snub snus ssbn ssdd ssid ssin ssis ssit ssns sssb sssi ssss sstb sstd ssts stbd stbs stds stib stid stis stit stnd stnn stns stsi stss sttd stub stud stun stus stut sub- subb subd subi subs sudd sudi suds suid suin suis suit sun- sunb sund suni sunn suns sunt sunu sus- susd susi suss sust susu suti sutu suus tbbs tbit tbst tddb tdis tdss tibi tibs tibu tidd tids tiit tiiu tind tini tinn tins tint tinu tisb tisi tiss tist titi tits titt titu tndd tnts tnut tsbd tsdb tsid tsin tsis tssi tsst tsts tsui tsun ttbb ttss tttt tubb tubs tubu tudi tudu tuin tuis tuit tuiu tunb tund tuni tunn tuns tunu tusd tusi tuss tust tuti tuts tutt tutu ubbi ubid ubii ubis ubit ubud uddi udds udid udin udsd udts udun uint uisd uist uits unbd undi unds uni- unii unin unis unit unni unns uns- unst untb unts unus unut usbs usds usdt usin usis usnu ussb usss usst ussu ustb usti usts usui usun usus utid utin utis utti uttu uuni uusi uuuu