ksss ksst kssu kstc kste kstk kstp kstr ksts kstt kstu ksue ksup ksut ksuu ktcc ktce ktck ktcr ktcs ktec ktee ktek ktep ktkc ktke ktkk ktkr ktks ktkt ktku ktpk ktpr ktpt ktrc ktre ktrk ktrp ktrr ktrs ktrt ktru ktsc ktsr ktst ktsu kttc kttk kttp kttr ktts kttt kttu ktuc kucc kuce kucp kucr kuek kues kueu kuke kukk kuks kuku kupe kupr kups kupt kupu kure kurk kurr kurs kurt kuru kusc kusp kust kusu kute kutp kutr kuts kutt kutu kuuk kuur kuuu pccc pcce pccs pcep pcer pcks pcpp pcps pcrc pcre pcse pcte pcts pece peck pecr pecs pect peec peek peep peer pees peet peke pekk pepe peps per- perc pere perk perp perr pers pert peru pese pess pest pesu pete petr pets pett peur peut pkcs pkts ppcc ppcs pper pppp ppps pprc ppru ppss ppts pptt ppur prcc prcp prcs pre- prec pree prek prep pres pret preu prps prrs prsc prse prss prtc prtp prtr prue prus prut pruu pscu psec pspp pspr psps psrk psrp pssc psse psst psts pstu ptcc pter pttc pttk pu-e puce puck puer puet pueu puke puku pupe pups pupu pur- pure purp purr purs puru pusk puss pust put- pute puts putt putu puuc rccc rccs rcep rcet rcps rcpt rcsc rcss rctc rcts recc rece reck recp recr recs rect recu reek reep rees reet reke reks rekt repe repp repr reps rept repu rere rers rert reru rese resp ress rest rete retr rets rett reue reuk reup reus reut reuu rkss rkts rpcs rpet rpps rpts rrrr rrsp rscc rscs rsee rspk rsps rsre rstp rsts rstu rtcc rtce rtee rtes rtps rtss rttp rtts ruce ruck ruct ruer rues ruet ruke rukk ruku rupe rupp rupt rurc rure rurp rurs ruru ruse rusk russ rust rusu rute ruts rutt rutu sccc scce sccp sccs scct scec scee scep scer scet sck- scpe scps scpt scr- scrc scre scrs scsc scsr scst scsu sctc sctr scts scup scur scut se-c se-e se-k se-s se-t se-u sec- secc sece seck secr secs sect secu seec seek seep seer sees seet seeu seke sekk sekt seku sepe sepp sepr seps sept sepu serc sere serk serp serr sers sert seru sesc sese sess sest set- setc sete sets sett seur skee skep sker skes sket skpc skrt skss skue skup skur skut spcc spcs spec spee spek sper spes spet spke spkr spps sprs spse spsp spss spst sptc sptr spts spue spur spus sput srcc srct srec sres srpc srps srpt srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset sspc sspe ssps sspt ssrc ssrs sssc ssss sstc sstp ssts stcc stcp stcs stcu stec stee stek step ster stes stet stks stpp stps strc stre strk strs stru stss sttc sttr stuc stue stuk stup stur stus stut suc- succ suck sucr sucs suee suer sues suet sueu suke suks suku sup- supe supp supr sups supt sur- surc sure surp surr surs surt suru sus- suse susk susp suss sust susu sute sutu suus tccc tccu tcep tctc tcts teck tecr tecs tect teec teek teer tees teet teke tepe tepp tepu ter- terc tere terk terp terr ters teru tesc tese tesp tess test tete tetr tets tett tetu teuk teut tkts tpck tpcp tpcs tper tpke tpks tppp tppr tprs tpsc tpte tptp tptr tput trcc tre- trec tree trek tres tret treu trpc trpe trpp trps trst trtc trte trtr truc true truk trus trut truu tscc tscp tsec tses tset tsks tsps tspt tsse tssr tsst tstc tsts tsup ttcp tter ttss tttt tucc tuck tuer tues tuet tuke tuks tupe tups tupu turc ture turk turp turr turs turt turu tusc tusk tuss tust tute tuts tutt tutu u-rp uccp uces ucrc ucsc ucst ucsu ucut uers uess ukcc ukek ukes ukeu ukps ukrc uksc ukup ukur upcs uppc uppe uppp uppu upsc upse upup ure- ures uret urke urre urse urss ursu urte urts uruk urup urur urus urut us-k uscc usce uscs usee user uses uset uske uspc uspp usps ussc usse ussr usss usst ussu ustc uste ustp usts usus utec utep uter utes utsc uttu uucp uuuu

-tree c-p-c c-tec ccccc ccett ccups ceere ceese cepes cepet cerc- cerce cercs cerec cerer ceres ceret cerke cerps cerre cerrs cerse cerss certe certs cerus cesce cescr cesse ceste cests cetes cette cetus cpctc cpesc crece creek creep creer crees creke crepe crept crepu cresc crese cress crest crete cretu creu- creue creup crres cruce cruck cruet cruke crupe crure cruse crust cruts csere csprs cstcc cteep ctree cttee cucks cucuk cuers cueup cuker cukes cuper cupes cupr- curce curer cures curet curre currs curse curst curts curup cusec cuser cusks cusps cusse custe cutcu cutee cuter cutes cutts cutup e-cps eccup ecker ecrus ecser ecspp ecups eecke eeeee eepee ekers ekker ekuku ekuru epees eperc epeus eppes epuku epure erecs erect erept erere eresk erest erets erkec erres errtu erses erste ersts erte erter ertes eruct eruke erupt eruts esces escrt esect esere esker esp-r espec esper espre esser esses essse essue estce estee estep ester estes estet estre estur estus esure eteke etest etete etree etrek etres etter ettes eturu eucre eurre eurus euser k-p-r k-set k-ute kcups kecer kecks keeks keepe keeps keere keest keets kekec keppe kerek kerep keres keret kerre kerrs kerse kersp kerss kertu keser kesse keste ketek keter kette kreek kreep krees kreke krepe kreps kresk kress krest krete kreuk krupp krups kruse krust ksrtc kucer kucuk kukec kuksu kukup kukur kupce kuper kuppe kupur kurek kurku kurre kurse kursk kurte kurts kuruc kuruk kurup kurus kusur kutte kuttu kutur kutus kuuse kuusk p-rep pccts pcept pcert pctct peces pecke pecks peece peeke peeks peeps peere peers peert peese peesk peest peete peets pekes peket pekre pepee pepes peppe pepst pept- pepup perce percs perec perer peres peret