bbbb bbbs bbci bbpr bbrc bcbc bcbp bcbs bccc bcci bccs bcis bcit bcpp bcps bcrs bcru bcsc bcss bctc bcts bcuc bcup bibb bibi bibs bicc bici bics biis bipp bips bipu birb biri birr birs birt biru bis- bisc bisp biss bist bisu bitc bits bitt bitu bpcp bprc bpsu bpti brcb bric bris brit brrr brrs brsb brsr brst brtc bruc brup brus brut bsci bscp bscs bsic bspp bspr bssc bsts bsup btbp btcc btcs btps btrc btrt btss bttb btus bubb bubi bubs bubu bucc buci bucs bucu buic buir buis buit buiu bupc bups bur- burb buri burp burr burs burt buru busc busi buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcp cbcr cbcs cbct cbcu cbir cbit cbpc cbpp cbrt cbsc cbsi cbtc cbus ccbc cccb cccc ccci cccp cccs cccu ccic ccii ccip ccir ccis ccpp ccpr ccps ccrc ccri ccrp ccrs ccrt ccsi ccsp ccss ccst cctb cctc cctt ccuc ccup ccus ccut cibc cibi cicc cici cicr cics cict cicu ciii ciis ciit cipp cips cirb circ ciri cirr cirs cirt cis- cisc cisp cisr ciss cist citb citi citp cits citt citu ciuc ciup cius cpbc cpcs cpcu cpic cpps cpri cprs cprt cpsc cpsr cpsu cptp cptr cpts cpus crbc crbu crcc crcr crib cric crip cris crit criu crpc crps crrt crsp crss crst crtc crtp crts crub crup crus crut cscb cscc csci cscr cscs csib csir csis csit cspb cspc cspi csps cspt csrc csrs cssr cstc cstr csts csup csur csus ctbi ctbs ctcp ctic ctpp ctps ctrc ctrp ctrs ctsc ctss ctsu ctts cub- cubb cubi cubs cucc cuci cui- cuir cuis cuit cupp cupr cups curb curi curr curs curt cusb cusp cuss cust cusu cut- cutc cuts cutt ibcs ibis ibrc ibri ibss ibtb ibtc ibts ibus icbc icbp icbs iccb iccc icci iccp iccr iccs icct iccu icis icpc icps icrc icrr icrs icrt icru icsb icsc icsi icsp icsr icss icst ictp icts icub icup icus iiii iiis iiit iirc iirs iisc iisi iisp iisr iist iisu iitr iitt iiuc ipcc ipcs ipct ippc ippr ipri ipsc ipsi ipsp ipss iptc ipts ipur ipus iput irbp ircc ircs ircu iri- iric irip iris irpc irps irrc irri irrs irsp irti irtp irts irus isbt iscc isci iscp iscr iscs isct iscu isic isis isit ispc ispr isps isri isrp issc issi issp issr isss issu istc isti istp istr ists isup isus itbs itcs itic itis itpc itri itrs itsi itsp itsu itup itur iucc iuiu iupp iuss iust pbcc pbrs pbsp pcbc pcbs pccc pccs pcip pcpb pcpp pcps pcrc pcts pibb pibi picc pici picr pics pict picu piip pipi pipp pips pirc piri pirr pirs piru pisi piss pist pisu piti pitr pits pitt pitu pius ppcc ppci ppcs ppib ppic pppp ppps pprc ppru ppss ppts pptt ppur prbc prbs prcc prcp prcs pri- prii pris prps prri prrs prsc prsi prss prtc prti prtp prtr prus prut pruu psbr psbt psci pscu psip psis pspi pspp pspr psps psrp pssc psst psts pstu ptcc pttc ptui pubs pubu puir puis puit puiu pupi pups pupu pur- purb puri purp purr purs puru pusi puss pust put- puti puts putt putu puuc rbbb rbbr rbbs rbis rbsp rbss rbst rcbc rccb rccc rccs rcic rcis rcpi rcps rcpt rcsc rcsi rcss rctc rcti rcts rib- ribs ribu ricc rics rict riis ripi ripp ripr rips ript riri rirs risc risi risp riss rist risu riti rits ritt ritu rius rpcs rpii rpps rpts rrrr rrsp rsbi rscc rscs rsis rspb rsps rstp rsts rstu rtcc rtps rtss rttp rtts rubb rubi rubp rubs rubu ruci ruct ruis ruit rupp rupt rurc ruri rurp rurs ruru rusi russ rust rusu ruti ruts rutt rutu s-ib s-ic s-ii sbbs sbcc sbcs sbct sbic sbsi sbsp sbst sbtc sbus scbi sccc sccp sccs scct sci- scic scip scir scis scit scpb scpi scps scpt scr- scrc scri scrs scsc scsi scsr scst scsu sctc sctr scts scub scup scur scut sibc sibi sibs sibu sicc sici sicp sics sicu siit sipc sipi sipp sips sipt sirc siri sirp sirr sirs sirt siru sisc sisi siss sist sisu sit- sitc siti sits sitt situ siui sius siut spcc spcs spib spic spip spir spis spit spps spri sprs spsp spss spst sptb sptc sptr spts spui spur spus sput srbc srcc srct srib sris srpc srps srpt srsp srtp srtr srub ssbr sscc ssci sscp sscs ssis ssit sspc ssps sspt ssrc ssri ssrs sssb sssc sssi ssss sstb sstc sstp ssts stbc stbs stcc stcp stcs stcu stib stic stip stir stis stit stpp stps strc stri strs stru stsi stss sttc sttr stub stuc stup stur stus stut sub- subb subi subs suc- succ suci sucr sucs suir suis suit sup- supp supr sups supt sur- surc suri surp surr surs surt suru sus- susi susp suss sust susu suti sutu suus tbbs tbcb tbcc tbit tbrb tbsp tbst tbtp tcbs tccc tccu tctc tcts tibi tibs tibu ticc tics tiit tiiu tip- tipc tipi tipp tips tipt tipu tirb tiri tirr tirs tiru tisb tisi tiss tist titc titi titp tits titt titu tpcp tpcs tpir tppp tppr tprs tpsc tptp tptr tput trcc tri- trib tric trip tris trit trpc trpp trps trsi trst trtc trtr trub truc trus trut truu tsbc tscc tscp tsis tsps tspt tssi tssr tsst tstc tsts tsui tsup ttbb ttcp ttss tttt tubb tubr tubs tubu tucc tuis tuit tuiu tupi tups tupu turb turc turi turp turr turs turt turu tusc tusi tuss tust tuti tuts tutt tutu u-rp ubbi ubic ubii ubir ubis ubit ubpc ucbc ucci uccp ucpb ucrc ucsb ucsc ucst ucsu ucut uipi uirr uist uits upci upcs upic upis uppc uppp uppu upri upsc upsi upup urbi urbs urci urib uric uris uriu urri ursi urss ursu urts urup