bbbb bbbs bbfn bbhs bbin bffs bfhs bfsi bfsr bhff bhhs bhir bhsf bhur bhuu bibb bibi bibs biff bifi bihi bihs bihu biin biis bin- binh bini binn bins binu birb biri birn birr birs biru bis- bish biss bisu bnhs bnib bnin bnrr bnss brfu brhs brih brin bris brns brrr brrs brsb brsr bruh brun brus bsff bsfs bshs bsin bsns bubb bubi bubs bubu buff bufr buhi buhr buhs buif buin buir buis buiu bunb buni bunn buns bunu bur- burb burh buri burn burr burs buru bush busi buss busu buus fbhs fbis fbrs fbus ffff ffhs ffii ffrr ffss ffun fhfs fhhs fhrs fhss fibs fiff fifi fiii fini finn fins firn firs fish fisi fiss fisu fnhs fnrs fnuf frhs frib frin fris frns frsb frub frun fsfi fshb fshs fssf fubb fubs fubu fuff fufu fuhs fuir funf funh funs fur- furi furn furr furs fusi fuss fusu h-ii hbbs hbhs hbrs hbss hfhs hfrs hfss hhhh hhhs hhus hibi hibu hiff hifh hifi hifn hifr hihi hiis hiiu hinn hins hirf hiri hirn hirs hiru hisb hish hisn hiss hnhs hrhs hrib hrun hsfs hshs hsin hsni hsur hubb hubi hubs huff hufs hufu huhi huhn huhs huhu huib huif huir huis hunh huni huns huri hurn hurr hurs huru hush husi huss huub huus ibfi ibis ibns ibri ibsf ibsn ibss ibus ifbb ifis ifni ifnr ifns ifrb ifrf ifri ifsb ihis ihss ihub iiii iiis iirs iisi iisr iisu infi infs inhs inis inni innr inns innu inri inrs insh inss insu inui inun inus irfu irhs iri- irin iris irri irrs irsf irun irus isbn ishi ishr ishs isin isis isri issf issh issi issr isss issu isuh isus iuiu iuss n-ii nbhs nbuf nfff nfhs nfib nfrs nfsr nfsu nhhs nhis nhnn nibi nibs niff nihf niir niiu ninh nini nins nirs niru nish nisi niss nisu niur nnhs nnnn nnss nrhs nsfs nshs nsin nsis nsnr nssb nssf nssr nsss nsub nubi nubs nuff nuhi nuin nunn nuns nuri nurn nurr nurs nuru nush nusi nuss nusu rbbb rbbr rbbs rbhs rbis rbss rfhs rhfs rhhs rhib rhin rhun rhus rib- ribs ribu riff rifs rifu rihs riif riin riis rinf rinn riri rirs rish risi riss risu rius rnbr rnin rnsh rrhs rrif rrrr rrun rsbi rshs rsis rsnn rsnr rubb rubi rubs rubu ruff ruhh ruhi ruhn ruhr ruhs ruif ruin ruis runf runi runn runs ruri rurs ruru rush rusi russ rusu ruun s-ib s-ii sbbs sbhs sbsi sbus sfhs sfnb sfss sfsu shbs shhh shhs shib shih shii shin shir shis shiu shri shrs shub shuf shui shun shur shus shuu sibi sibs sibu siff sifr sifu sihi sihr sihs sihu sinh sini sinn sins sinu sirf siri sirr sirs siru sish sisi siss sisu siui sius snfu snhs snib snir snns snrs snub snur snus srfi srhs srib sris srni srnn srub ssbn ssbr sshs ssin ssis ssns ssri ssrs sssb sssf sssh sssi ssss sub- subb subh subi subs suf- suff sufi sufr sufs sufu suhb suhi suhr suin suir suis sun- sunb suni sunn suns sunu sur- surf suri surn surr surs suru sus- susi suss susu suus ubbi ubii ubir ubis uhrs uhss uhuh uirr uni- unif unii unin unir unis unni unns unrf unrs uns- unus urbi urbs urff urfi urib urif urin uris uriu urni urns urrh urri ursi urss ursu urun urur urus usbr usbs usfi usfs ushi ushr ushs ushu usif usin usis usnr usnu ussb ussf ussr usss ussu usui usun usus uuni uuri uusi uuuu