bbbb bbbs bbeb bbet bbfc bbpr bbrc bcbc bcbp bcbs bccc bccs bcec bcer bces bcet bcfc bcpp bcps bcrs bcru bcsc bcss bctc bcts bcuc bcup bebb bebe becs becu beeb beef beep beer bees beet befe beff beft berc bere berr bers bert beru bes- bese bess best betc bete bets bett betu beur bfcs bffs bfpp bfsr bfts bftt bpcp bpfc bprc bpsu bptf brcb brce breb brec bree bref brep brer bres bret brfc brfu brrr brrs brsb brsr brst brtc bruc brue brup brus brut bscp bscs bseb bsec bsee bser bses bset bsfc bsff bsfs bspp bspr bssc bsse bsts bsup btbp btcc btcs btec btfc btps btrc btrt btss bttb btus bubb bube bubs bubu bucc buce bucs bucu buer bueu bufc bufe buff bufr bupc bups bur- burb bure burp burr burs burt buru busc buse buss bust busu but- bute buts butt buus cbbc cbbs cbcc cbce cbcp cbcr cbcs cbct cbcu cbec cbee cbef cber cbet cbfb cbfc cbpc cbpp cbre cbrt cbsc cbse cbtc cbtf cbus ccbc cccb cccc cccf cccp cccs cccu ccee ccfc ccff ccpe ccpp ccpr ccps ccrc ccre ccrf ccrp ccrs ccrt ccsf ccsp ccss ccst cctb cctc cctt ccuc ccup ccus ccut cebp cebs cebu cec- cece cecp cecs cect ceeb ceec cees cef- cefc cepc cepe cepp cepr ceps cept cer- cerc cere cerf cerp cers cert cesc cese cesp cesr cess cest cet- cete cetp cets cfbc cfbr cfbs cfbt cfcb cfcf cfcs cffb cffr cfpr cfps cfrb cfre cfrp cfrt cfse cftc cfte cftr cpbc cpce cpcs cpcu cpeb cpep cper cpff cpft cpps cpre cprs cprt cpsc cpsr cpsu cptp cptr cpts cpus crbc crbu crcc crce crcr cre- creb crec cree crep cres cret creu crfc crfs crpc crps crrt crsp crss crst crtc crtf crtp crts crub crue crup crus crut csbf cscb cscc csce cscf cscr cscs csec csee csep cser cset csfc csfr cspb cspc cspe csps cspt csrc csrs csse cssr cstc cstr csts csuf csup csur csus ctbs ctcf ctcp ctec ctep ctfc ctfs ctpp ctps ctrc ctrp ctrs ctsc ctss ctsu ctts cub- cubb cube cubs cucc cuce cuer cues cufc cuff cupe cupp cupr cups curb cure curf curr curs curt cusb cusp cuss cust cusu cut- cutc cute cuts cutt ebbc ebbr ebbs ebcc eber ebes ebfc ebru ebur ebus ecbc ecbe eccb eccc ecce ecct ecef eces ecfc ecfr ecfs ecpp ecrc ecrf ecrr ecru ecsc ecse ecsp ecss ecsu ect- ectc ectf ects ecus eecs eeee eees eefe eeps eerc eers eese eetc eete eets eetu efbr efes efet effs eft- eftp efts eftu epcc epec epee eper epes epfc eppc eppp epps eprb eprp eprs epsc epsf epsp epss epte epub epus erbb erbe ercc erce ercp ereb erec erer eres eret erfc erfs erft erpe erps errc erre errs erse erst erts ertu erub eruc erur erus esbs escb esce escr escs escu esee eser eses eset esfp esfs espc espe espp esps esse essp esst essu estc este estp estr ests esuf esus etbc etbr etcc etcs etec etee eter etes etfb etfc etfe etre etsu ette ettu eubc euer eufc eur- eurc eure eurt euse fbrs fbus fcbs fccf fccp fces fcps fcsc fcst fcup febs fece fect feeb feer fees feet fefc fefe feff fepc feps ferb ferc fere ferr fers fert feru fese fess fest fete fetp fetr fets fett fetu feus ffcc ffee ffff ffps ffrr ffss fftf fp-c fpcc fpct fprf frbc frcc frcp free frep fres fret frfc frps frsb frsc frst frub frue fscb fscc fsec fspc fspf fssc fssf fssp ft-c fter ftfc ftpe ftps ftrs ftse ftsr ftub ftuc fubb fubs fubu fuc- fuct fuet fufc fuff fufu fur- fure furr furs furt fusc fuse fuss fust fusu fute futs futu pbcc pbrf pbrs pbsp pcbc pcbs pccc pcce pccs pcep pcer pcfc pcpb pcpp pcps pcrc pcre pcrf pcse pcte pcts pece pecr pecs pect peec peep peer pees peet pefc peff pefs pepe peps per- perc pere perf perp perr pers pert peru pese pess pest pesu pete petr pets pett peur peut pfcb pfce pfcs pfet pfff pffr pfft pfps pfte ppcc ppcs pper pppp ppps pprc pprf ppru ppsf ppss ppts pptt ppur prbc prbs prcc prcf prcp prcs pre- preb prec pree pref prep pres pret preu prfc prfs prps prrs prsc prse prss prtc prtp prtr prue pruf prus prut pruu psbr psbt pscu pseb psec psfs pspp pspr psps psrp pssc psse psst psts pstu ptcc pter ptrf pttc pu-e pube pubs pubu puce puer puet pueu puff puft pupe pups pupu pur- purb pure purp purr purs puru puss pust put- pute puts putt putu puuc rbbb rbbr rbbs rbsp rbss rbst rcbc rccb rccc rccs rcep rcet rcfc rcps rcpt rcsc rcss rctc rcts rebb rebe rebs rebu recc rece recp recr recs rect recu reeb reef reep rees reet refe reff refr refs reft refu repe repp repr reps rept repu rere rers rert reru rese resp ress rest rete retr rets rett reue reuf reup reus reut reuu rfef rffc rftc rpcs rpet rpfc rpps rpts rrfc rrrr rrsp rscc rscs rsee rsfc rspb rsps rsre rstp rsts rstu rtbf rtcc rtce rtee rtes rtfb rtfc rtps rtss rttp rtts rubb rube rubp rubs rubu ruce ruct ruer rues ruet rufc rufe ruff ruft rupe rupp rupt rurc rure rurp rurs ruru ruse russ rust rusu rute ruts rutt rutu sbbs sbcc sbcs sbct sbef sber sbfc sbse sbsp sbst sbtc sbus sccc scce sccp sccs scct scec scee scep scer scet scfc scfe scpb scpe scps scpt scr- scrc scre scrs scsc scsr scst scsu sctc sctr scts scub scup scur scut se-c se-e se-f se-s se-t se-u sebe sebs sebt sec- secc sece secr secs sect secu seeb seec seef seep seer sees seet seeu seff seft sepe sepp sepr seps sept sepu serb