ceci cecp cecs cect ceeb ceec cees ceip cepc cepe cepp cepr ceps cept cer- cerc cere ceri cerp cers cert cesc cese cesi cesp cesr cess cest cet- cete ceti cetp cets ceui cibc cibe cibi cicc cici cicr cics cict cicu ciee cier cies ciii ciis ciit cipp cips cirb circ cire ciri cirr cirs cirt cis- cisc cise cisp cisr ciss cist citb cite citi citp cits citt citu ciuc ciup cius cpbc cpce cpcs cpcu cpeb cpep cper cpic cpps cpre cpri cprs cprt cpsc cpsr cpsu cptp cptr cpts cpus crbc crbu crcc crce crcr cre- creb crec cree crei crep cres cret creu crib cric crie crip cris crit criu crpc crps crrt crsp crss crst crtc crtp crts crub crue crup crus crut cscb cscc csce csci cscr cscs csec csee csep cser cset csib csir csis csit cspb cspc cspe cspi csps cspt csrc csrs csse cssr cstc cstr csts csup csur csus ctbi ctbs ctcp ctec ctep ctic ctpp ctps ctrc ctrp ctrs ctsc ctss ctsu ctts cub- cubb cube cubi cubs cucc cuce cuci cuer cues cui- cuir cuis cuit cupe cupp cupr cups curb cure curi curr curs curt cusb cusp cuss cust cusu cut- cutc cute cuts cutt ebbc ebbr ebbs ebcc eber ebes ebic ebis ebit ebru ebur ebus ecbc ecbe eccb eccc ecce ecci ecct eces ecib ecip ecis ecit ecpp ecrc ecri ecrr ecru ecsc ecse ecsp ecss ecsu ect- ectc ects ecus eecs eeee eees eeps eerc eers eese eesi eetc eete eets eetu eics eiec eiei eier eies eipr eire eirs eise eiss eist eitb eitc eiti eitr epcc epci epec epee eper epes epi- epic epie epip epis epit eppc eppp epps eprb eprp eprs epsc epsi epsp epss epte epub epus erbb erbe ercc erce ercp ereb erec erei erer eres eret eric erie eris erit eriu erpe erps errc erre errs erse ersi erst erts ertu erub eruc erur erus esbs escb esce esci escr escs escu esee eser eses eset esie esis esit espc espe espi espp esps esri esse essi essp esst essu estc este estp estr ests esui esus etbc etbr etcc etcs etec etee eter etes etic etre etsi etsu ette etti ettu etui eubc eubi euer eur- eurc eure eurt euse i-be ibcs ibec ibes ibet ibie ibis ibrc ibri ibss ibtb ibtc ibts ibus icbc icbp icbs iccb iccc icci iccp iccr iccs icct iccu icec icee icer ices icet icis icpc icps icrc icre icrr icrs icrt icru icsb icsc icse icsi icsp icsr icss icst ictp icts icub icue icup icus iecc ieet ieie iere ieri iers iesc iesi iesr iest iesu iett iies iiie iiii iiis iiit iirc iirs iisc iisi iisp iisr iist iisu iitr iitt iiuc ipcc ipce ipcs ipct ipec iper ipes ipet ipie ippc ippr ipri ipsc ipse ipsi ipsp ipss iptc ipts ipur ipus iput irbe irbp ircc ircs ircu iree irer ires iri- iric irie irip iris irpc irpe irps irrc irre irri irrs irse irsp irte irti irtp irts irus isbe isbt iscc isci iscp iscr iscs isct iscu iseb isec isee isep iser ises iset isic isie isis isit ispc ispe ispr isps isri isrp issc isse issi issp issr isss issu istc iste isti istp istr ists isup isus itbe itbs itcs itec itep iter ites itet itic itie itis itpc itri itrs itse itsi itsp itsu itup itur iucc iuce iuiu iupp iuse iuss iust pbcc pbrs pbsp pcbc pcbs pccc pcce pccs pcep pcer pcip pcpb pcpp pcps pcrc pcre pcse pcte pcts pece peci pecr pecs pect peec peep peer pees peet peip peir peis peit pepe pepi peps per- perc pere peri perp perr pers pert peru pese pesi pess pest pesu pete peti petr pets pett peur peut pibb pibi picc pice pici picr pics pict picu piep pier pies piet piip pipe pipi pipp pips pirc pire piri pirr pirs piru pise pisi piss pist pisu pite piti pitr pits pitt pitu pius ppcc ppci ppcs pper ppib ppic ppie pppp ppps pprc ppru ppss ppts pptt ppur prbc prbs prcc prcp prcs pre- preb prec pree prep pres pret preu pri- prie prii pris prps prri prrs prsc prse prsi prss prtc prti prtp prtr prue prus prut pruu psbr psbt psci pscu pseb psec psei psip psis pspi pspp pspr psps psrp pssc psse psst psts pstu ptcc pter pttc ptui pu-e pube pubs pubu puce puer puet pueu puir puis puit puiu pupe pupi pups pupu pur- purb pure puri purp purr purs puru pusi puss pust put- pute puti puts putt putu puuc rbbb rbbr rbbs rbis rbsp rbss rbst rcbc rccb rccc rccs rcep rcet rcic rcis rcpi rcps rcpt rcsc rcsi rcss rctc rcti rcts rebb rebe rebs rebu recc rece reci recp recr recs rect recu reeb reep rees reet reii reir reis reit reiu repe repi repp repr reps rept repu rere reri rers rert reru rese resi resp ress rest rete reti retr rets rett reue reup reus reut reuu rib- ribe ribs ribu ricc rice rics rict riep rier ries riet rieu riis ripe ripi ripp ripr rips ript rire riri rirs risc rise risi risp riss rist risu rite riti rits ritt ritu riue rius rpcs rpet rpii rpps rpts rrrr rrsp rsbi rscc rscs rsee rsis rspb rsps rsre rstp rsts rstu rtcc rtce rtee rtei rtes rtps rtss rttp rtts rubb rube rubi rubp rubs rubu ruce ruci ruct ruer rues ruet ruis ruit rupe rupp rupt rurc rure ruri rurp rurs ruru ruse rusi russ rust rusu rute ruti ruts rutt rutu s-ib s-ic s-ii sbbs sbcc sbcs sbct sber sbic sbse sbsi sbsp sbst sbtc sbus scbi sccc scce sccp sccs scct scec scee scep scer scet sci- scic scie scip scir scis scit scpb scpe scpi scps scpt scr- scrc scre scri scrs scsc scsi scsr scst scsu sctc sctr