bbbb bbbs bbch bbci bbhs bbrc bcbc bcbs bccc bcci bccs bchs bcis bcit bcrs bcru bcsc bcss bctc bcts bcuc bhcc bhhs bhir bhit bhrt bhur bhut bhuu bibb bibi bibs bicc bich bici bics bihi bihs bihu biis birb biri birr birs birt biru bis- bisc bish biss bist bisu bitc bith bits bitt bitu brcb brhs bric brih bris brit brrr brrs brsb brsr brst brtc bruc bruh brus brut bsci bscs bshs bsic bssc bsts btcc btcs bths btrc btrt btss bttb btus bubb bubi bubs bubu bucc buch buci bucs bucu buhi buhr buhs buic buir buis buit buiu bur- burb burh buri burr burs burt buru busc bush busi buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcr cbcs cbct cbcu cbhs cbir cbit cbrh cbrt cbsc cbsi cbtc cbus ccbc cccb cccc ccci cccs cccu cchr cchs ccic ccii ccir ccis ccrc ccri ccrs ccrt ccsi ccss ccst cctb cctc cctt ccuc ccus ccut chch chci chcs chhs chib chic chih chir chis chit chiu chrb chrc chrr chrs chrt chsc chsh chsi chsr chst chtr chtt chub chui chur chus chut cibc cibi cicc cich cici cicr cics cict cicu cihr cihs ciht ciii ciis ciit cirb circ cirh ciri cirr cirs cirt cis- cisc cish cisr ciss cist citb cith citi cits citt citu ciuc cius crbc crbu crcc crcr crhs crib cric cris crit criu crrt crss crst crtc crts crub crus crut cscb cscc csch csci cscr cscs cshs csib csir csis csit csrc csrs cssr cstc cstr csts csur csus ctbi ctbs cths ctic ctrc ctrs ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cui- cuir cuis cuit curb curi curr curs curt cusb cush cuss cust cusu cut- cutc cuth cuts cutt h-ii hbbs hbhs hbic hbit hbrs hbss hbtu hcbc hcbs hccb hccc hcch hccs hchi hchs hcis hcsc hcss hcst hhhh hhhs hhus hi-c hibi hibt hibu hicc hich hics hihc hihi hiht hiis hiit hiiu hiri hirs hirt hiru hisb hish hiss hist hitc hiti hits hitt hrhs hrib hrit hrrc hrtb hsbc hscc hsci hsct hshs hsts hsur htcc hths htsc httr hubb hubi hubs huch hucs hucu huhi huhs huhu huib huir huis huit huri hurr hurs hurt huru hush husi huss hust huth huti huts hutt hutu huub huus ibcs ibis ibrc ibri ibss ibtb ibtc ibts ibus icbc icbs iccb iccc icci iccr iccs icct iccu ichc ichi ichr ichs ichu icis icrc icrr icrs icrt icru icsb icsc icsh icsi icsr icss icst icts icub icus ihcc ihis ihit ihrc ihss ihtc ihub iiht iiii iiis iiit iirc iirs iisc iisi iisr iist iisu iitr iitt iiuc ircc ircs ircu irhs iri- iric iris irrc irri irrs irti irts irus isbt iscc isch isci iscr iscs isct iscu ishi ishr ishs isic isis isit isri issc issh issi issr isss issu istc isth isti istr ists isuh isus itbs itch itcs ithc iths itic itis itri itrs itsi itsu itur iucc iuiu iuss iust rbbb rbbr rbbs rbhs rbis rbss rbst rcbc rccb rccc rccs rchb rchs rcic rcis rcsc rcsi rcss rctc rcti rcts rhhs rhib rhus rib- ribs ribu ricc rich rics rict rihs riht riis riri rirs risc rish risi riss rist risu rith riti rits ritt ritu rius rrhs rrrr rsbi rscc rsch rscs rshs rsis rsts rstu rtcc rths rtss rtts rubb rubi rubs rubu ruch ruci ruct ruhh ruhi ruhr ruhs ruis ruit rurc ruri rurs ruru rush rusi russ rust rusu ruth ruti ruts rutt rutu s-ib s-ic s-ii sbbs sbcc sbcs sbct sbhc sbhs sbic sbsi sbst sbtc sbus scbi sccc sccs scct sch- schh schi schr schs sci- scic scir scis scit scr- scrc scri scrs scsc scsh scsi scsr scst scsu sctc sctr scts scub scur scut shbs shbt shcc shhh shhs shib shih shii shir shis shit shiu shri shrs shsc shts shub shui shur shus shut shuu sibc sibi sibs sibu sicc sich sici sics sicu sihi sihr sihs siht sihu siit sirc siri sirr sirs sirt siru sisc sish sisi siss sist sisu sit- sitc sith siti sits sitt situ siui sius siut srbc srcc srch srct srhs srib sris srtr srub ssbr sscc ssci sscs sshs ssis ssit ssrc ssri ssrs sssb sssc sssh sssi ssss sstb sstc ssth ssts stbc stbs stcc stch stcs stcu sths stib stic stih stir stis stit strc stri strs stru stsi stss sttc sttr stub stuc stur stus stut sub- subb subh subi subs suc- succ such suci sucr sucs suhb suhi suhr suir suis suit sur- surc suri surr surs surt suru sus- susi suss sust susu suti sutu suus tbbs tbcb tbcc tbhs tbit tbrb tbst tcbs tccc tccu tch- tchh tchi tchr tchs tchu tcsh tctc tcts thbs thch thi- thic thir this thri thru thsr thss thtb thtr thts thur thus tibi tibs tibu ticc tich tics tiht tihu tiit tiiu tirb tiri tirr tirs tiru tisb tish tisi tiss tist titc tith titi tits titt titu trcc trhs tri- trib tric tris trit trsi trst trtc trtr trub truc trus trut truu tsbc tscc tshb tshi tshs tsis tssi tssr tsst tstc tsts tsui ttbb ttss tttt tubb tubr tubs tubu tucc tuch tuhs tuht tuhu tuis tuit tuiu turb turc turi turr turs turt turu tusc tush tusi tuss tust tuti tuts tutt tutu ubbi ubic ubii ubir ubis ubit ucbc ucci uchi uchs ucrc ucsb ucsc ucst ucsu ucut uhrs uhss uhti uhuh uirr uist uits urbi urbs urch urci urib uric uris uriu urrh urri ursi urss ursu urth urts urur urus urut usbc usbr usbs uscc usch uscs ushi ushr ushs ushu usis ussb ussc ussr usss usst ussu ustb ustc usti usts usui usus utis utri utsc utti uttu uuri uusi uuuu