bbbb bbbs bbhs bbin bhhs bhir bhit bhrt bhur bhut bhuu bibb bibi bibs bihi bihs bihu biin biis bin- binh bini binn bins bint binu birb biri birn birr birs birt biru bis- bish biss bist bisu bith bits bitt bitu bnhs bnib bnin bnrr bnss brhs brih brin bris brit brns brrr brrs brsb brsr brst bruh brun brus brut bshs bsin bsns bsts bths btrt btss bttb btus bubb bubi bubs bubu buhi buhr buhs buin buir buis buit buiu bunb buni bunn buns bunt bunu bur- burb burh buri burn burr burs burt buru bush busi buss bust busu but- buti buts butt buus h-ii hbbs hbhs hbit hbrs hbss hbtu hhhh hhhs hhus hibi hibt hibu hihi hiht hiis hiit hiiu hinn hins hint hiri hirn hirs hirt hiru hisb hish hisn hiss hist hiti hits hitt hnhs hntb hntr hnts hrhs hrib hrit hrtb hrun hshs hsin hsni hstn hsts hsur hths httr hubb hubi hubs huhi huhn huhs huhu huib huir huis huit hunh huni huns hunt huri hurn hurr hurs hurt huru hush husi huss hust huth huti huts hutt hutu huub huus ibis ibns ibri ibsn ibss ibtb ibts ibus ihis ihit ihss ihub iiht iiii iiis iiit iirs iisi iisr iist iisu iitr iitt inhs inis init inni innr inns innu inri inrs insh inss inst insu inti intn intr ints intu inui inun inus irhs iri- irin iris irri irrs irti irts irun irus isbn isbt ishi ishr ishs isin isis isit isnt isri issh issi issr isss issu isth isti istr ists isuh isus itbs iths itin itis itri itrs itsi itsu itur iuiu iuss iust n-ii nbhs nbti nhhs nhis nhnn nhst nibi nibs niht niir niit niiu ninh nini nins nirs nirt niru nish nisi niss nist nisu nitb nith niti nitr nits niur nnhs nnit nnnn nnss nntn nrhs nrts nshs nsin nsis nsnr nssb nssr nsss nsts nstu nsub nthn nths ntht ntis ntnu ntru ntsb ntss ntsu nttr ntui nubi nubs nuhi nuin nuit nunn nuns nunt nuri nurn nurr nurs nurt nuru nush nusi nuss nust nusu nuth nuts nutt nutu rbbb rbbr rbbs rbhs rbis rbss rbst rhhs rhib rhin rhun rhus rib- ribs ribu rihs riht riin riis rinn riri rirs rish risi riss rist risu rith riti rits ritt ritu rius rnbr rnin rnnt rnsh rnut rrhs rrrr rrun rsbi rshs rsis rsnn rsnr rsts rstu rths rtns rtss rtts rubb rubi rubs rubu ruhh ruhi ruhn ruhr ruhs ruin ruis ruit runi runn runs runt ruri rurs ruru rush rusi russ rust rusu ruth ruti ruts rutt rutu ruun s-ib s-ii sbbs sbhs sbsi sbst sbtn sbus shbs shbt shhh shhs shib shih shii shin shir shis shit shiu shri shrs shts shub shui shun shur shus shut shuu sibi sibs sibu sihi sihr sihs siht sihu siit sinh sini sinn sins sint sinu siri sirr sirs sirt siru sish sisi siss sist sisu sit- sith siti sitn sits sitt situ siui sius siut snhs snib snir snit snns snrs sntr snub snur snus srhs srib sris srni srnn srtr srub ssbn ssbr sshs ssin ssis ssit ssns ssri ssrs sssb sssh sssi ssss sstb ssth ssts stbs sthn sths stib stih stir stis stit stnn stnr stns stri strn strs stru stsi stss sttr stub stun stur stus stut sub- subb subh subi subs suhb suhi suhr suin suir suis suit sun- sunb suni sunn suns sunt sunu sur- suri surn surr surs surt suru sus- susi suss sust susu suti sutu suus tbbs tbhs tbit tbrb tbst thbs thi- thin thir this thnt thri thru thsr thss thtb thtr thts thun thur thus tibi tibs tibu tiht tihu tiit tiiu tini tinn tins tint tinu tirb tiri tirr tirs tiru tisb tish tisi tiss tist tith titi tits titt titu tnsh tnts tnut trhs tri- trib trin tris trit trsi trst trtr trub trun trus trut truu tshb tshi tshs tsin tsis tssi tssr tsst tsts tsui tsun ttbb ttss tttt tubb tubr tubs tubu tuhs tuht tuhu tuin tuis tuit tuiu tunb tuni tunn tuns tunu turb turi turn turr turs turt turu tush tusi tuss tust tuti tuts tutt tutu ubbi ubii ubir ubis ubit uhrs uhss uhti uhuh uint uirr uist uits uni- unii unin unir unis unit unni unns unrs uns- unst untb unth unts unus unut urbi urbs urib urin uris uriu urni urns urrh urri ursi urss ursu urth urts urun urur urus urut usbr usbs ushi ushr ushs ushu usin usis usnr usnu ussb ussr usss usst ussu ustb usti usts usui usun usus utin utis utri utti uttu uuni uuri uusi uuuu