nusu nute nuts nutt nutu pccc pcce pccs pcep pcer pcns pcnt pcpn pcpp pcps pcrc pcre pcse pcte pcts pcun pece pecr pecs pect peec peen peep peer pees peet pen- penc pene penn pens pent penu pepe peps per- perc pere pern perp perr pers pert peru pese pess pest pesu pete petn petr pets pett peun peur peut pnec pnes pnet pneu pnpp pnsc pntr pnup ppcc ppcs ppen pper pppn pppp ppps pprc ppru ppss pptn ppts pptt ppur prcc prcp prcs pre- prec pree pren prep pres pret preu prnp prps prrs prsc prse prss prtc prtp prtr prue prus prut pruu pscu psec psnc psnr pspp pspr psps psrp pssc psse psst psts pstu ptcc pten pter pttc pu-e puce puer puet pueu punc pune puns punt punu pupe pups pupu pur- pure purp purr purs puru puss pust put- pute puts putt putu puuc rccc rccs rcep rcet rcnr rcps rcpt rcsc rcss rctc rcts recc rece recp recr recs rect recu reen reep rees reet rene renn rens rent renu repe repp repr reps rept repu rere rers rert reru rese resn resp ress rest rete retr rets rett reue reup reus reut reuu rncp rncs rnnt rnsp rntp rnut rpcs rpet rppn rpps rptn rpts rrrr rrsp rrun rscc rscn rscs rsee rsnn rsnr rsps rsre rstp rsts rstu rtcc rtce rtee rtes rtns rtps rtss rttp rtts ruce ruct ruen ruer rues ruet runc rune runn runs runt rupe rupp rupt rurc rure rurp rurs ruru ruse russ rust rusu rute ruts rutt rutu ruun sccc scce sccp sccs scct scec scee scep scer scet scnr scnt scpe scps scpt scr- scrc scre scrn scrs scsc scsn scsr scst scsu sctc sctn sctr scts scun scup scur scut se-c se-e se-n se-s se-t se-u sec- secc sece secn secr secs sect secu seec seen seep seer sees seet seeu sene senn senr sens sent sepe sepn sepp sepr seps sept sepu serc sere sern serp serr sers sert seru sesc sese sess sest set- setc sete sets sett seur sncc sncp snee snep sner snes snet snns snpp snrs snte sntr snur snus spcc spcs spec spee spen sper spes spet spne spns spps sprs spse spsp spss spst sptc sptr spts spue spun spur spus sput srcc srct srec sres srnn srpc srps srpt srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset ssns sspc sspe ssps sspt ssrc ssrs sssc ssss sstc sstp ssts stcc stcp stcs stcu stec stee sten step ster stes stet stnn stnr stns stpp stps strc stre strn strs stru stss sttc sttr stuc stue stun stup stur stus stut suc- succ sucr sucs suee suen suer sues suet sueu sun- sune sunn suns sunt sunu sup- supe supp supr sups supt sur- surc sure surn surp surr surs surt suru sus- suse susp suss sust susu sute sutu suus tccc tccu tcep tcnn tctc tcts tecr tecs tect teec teen teer tees teet tenc tene tenn tenp tens tent tenu tepe tepp tepu ter- terc tere tern terp terr ters teru tesc tese tesp tess test tete tetr tets tett tetu teut tncc tnes tnsp tnts tnut tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr tput trcc tre- trec tree tren tres tret treu trpc trpe trpn trpp trps trst trtc trte trtr truc true trun trus trut truu tscc tscp tsec tsen tses tset tspn tsps tspt tsse tssr tsst tstc tsts tsun tsup ttcn ttcp tten tter ttss tttt tucc tuen tuer tues tuet tunc tune tunn tuns tunu tupe tups tupu turc ture turn turp turr turs turt turu tusc tuss tust tute tuts tutt tutu u-rp uccp uces ucrc ucsc ucst ucsu ucut uers uesn uess uncc unce uncp uncs unct unec unee unen uner unes unne unns unpc unps unrs uns- unsc unst unte unts unus unut upcs upen upne upnp uppc uppe uppp uppu upsc upse upup ure- ures uret urne urns urre urse urss ursu urte urts urun urup urur urus urut uscc usce uscs usee usen user uses uset usnc usnr usnu uspc uspp usps ussc usse ussr usss usst ussu ustc uste ustp usts usun usus utec utep uter utes utne utsc uttu uucp uuen uuuu

-tree c-p-c c-tec ccccc ccett ccnet ccups cecun ceene ceere ceese cence ceneu cenpn cenpt cense cent- centr cents cepes cepet cerc- cerce cercs cerec ceren cerer ceres ceret cerne cerps cerre cerrs cerse cerss certe certs cerus cesce cescr cesen cesse ceste cests cesun ceten cetes cette cetun cetus cneru cnnnn cntrc cpctc cpesc crece creen creep creer crees cren- crepe crept crepu cresc crese cress crest crete cretu creu- creue creup crnce crnec crner crres cruce cruet crune crunt crupe crure cruse crust cruts csere csnet csnps csprs cstcc cteep cten- ctene ctree cttee cuers cueup cunne cunt- cunts cunut cuper cupes cupr- curce curer cures curet curre currs curse curst curts curup cusec cuser cusps cusse custe cutcu cutee cuter cutes cutts cutup e-cps e-ten eccen eccup ecrus ecser ecspp ecups eeeee eeens eence eener eenet eense eepee eeten ences encre encup encur enent enese enest enete enets ennes ennet enper enpeu enrut enste ensue enten enter entes entre entse enure enurn epeen epees epene eperc epeus eppes epure erecs erect ereen erept erere erest erets ernen ernes ernet ernst erres errtu erses erste ersts erte erter ertes ertun eruct erupt eruts esces escrt esect esene esens esere esnes esp-r espec espen esper espns espnu espre essen esser esses esspn essse essue estce estee estep ester estes estet estre estur estus esure etern etest etete etnre etree etres etrun etten etter ettes eturu eucen eucre eunet eunus eupen eurre eurus euser n-p-n ncree necr- nect- neece neeps neere neese neest neets neetu nenes nente neper neppe nepte neree neret nerre nerse nerst nersu nerte nerts nerur nerus nesen neset nesse neste nests neten netne netpc nette neuen neuer neueu