nnss nntn npcc npes nppc nprt npss nptc npte nptn nrcs nren nrfc nrpc nrpn nrps nrrc nrsc nrsp nrts nscc nscs nsec nsep nser nsfc nsfs nsnr nspc nsps nsrc nssc nsse nssf nssp nssr nsss nstc nstp nsts ntcc nter ntes ntfc ntfp ntfs ntpc ntrc ntsc ntsf ntss nttr pccc pcce pccs pcep pcer pcfc pcns pcnt pcpn pcpp pcps pcrc pcre pcrf pcse pcte pcts pece pecr pecs pect peec peen peep peer pees peet pefc peff pefs pen- penc pene penn pens pent pepe peps per- perc pere perf pern perp perr pers pert pese pess pest pete petn petr pets pett pfce pfcs pfet pfff pffr pfft pfps pfte pnec pnes pnet pnpp pnsc pntr ppcc ppcs ppen pper pppn pppp ppps pprc pprf ppsf ppss pptn ppts pptt prcc prcf prcp prcs pre- prec pree pref pren prep pres pret prfc prfs prnp prps prrs prsc prse prss prtc prtp prtr psec psfs psnc psnr pspp pspr psps psrp pssc psse psst psts ptcc pten pter ptrf pttc rccc rccs rcep rcet rcfc rcnr rcps rcpt rcsc rcss rctc rcts recc rece recp recr recs rect reef reen reep rees reet refe reff refn refr refs reft rene renn rens rent repe repp repr reps rept rere rers rert rese resn resp ress rest rete retr rets rett rfef rffc rftc rncp rncs rnnt rnsp rntp rpcs rpet rpfc rppn rpps rptn rpts rrfc rrrr rrsp rscc rscn rscs rsee rsfc rsnn rsnr rsps rsre rstp rsts rtcc rtce rtee rtes rtfc rtns rtps rtss rttp rtts sccc scce sccp sccs scct scec scee scep scer scet scfc scfe scnr scnt scpe scps scpt scr- scrc scre scrn scrs scsc scsn scsr scst sctc sctn sctr scts se-c se-e se-f se-n se-s se-t sec- secc sece secn secr secs sect seec seef seen seep seer sees seet seff seft sene senn senr sens sent sepe sepn sepp sepr seps sept serc sere serf sern serp serr sers sert sesc sese sess sest set- setc sete setf sets sett sfcc sfcs sfer sffc sfne sfnt sfpc sfrc sfss sftp sfts sncc sncf sncp snee snep sner snes snet snns snpp snrs snte sntr spcc spcs spec spee spef spen sper spes spet spfc spfs spne spns sppf spps sprs spse spsp spss spst sptc sptr spts srcc srct srec sres srfc srnn srpc srps srpt srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset ssfc ssfp ssns sspc sspe sspf ssps sspt ssrc ssrs sssc sssf ssss sstc sstp ssts stcc stcp stcs stec stee stef sten step ster stes stet stfc stfn stnn stnr stns stpf stpp stps strc stre strn strs stsf stss sttc sttr tccc tcep tcfc tcnn tctc tcts tecr tecs tect teec teef teen teer tees teet tefc teff teft tenc tene tenn tenp tens tent tepe tepp ter- terc tere terf tern terp terr ters tesc tese tesp tess test tete tetr tets tett tfec tfnp tfpt tfrs tfss tftc tftp tncc tnef tnes tnfc tnsp tnts tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr trcc tre- trec tree tref tren tres tret trfc trfr trpc trpe trpn trpp trps trst trtc trte trtr tscc tscp tsec tsen tses tset tsfc tspn tsps tspt tsse tssf tssr tsst tstc tsts ttcn ttcp tten tter ttfc ttff ttfn ttss tttt

-tree c-p-c c-tec ccccc ccett ccnet ceene ceere ceese cence cenpf cenpn cenpt cense cent- centr cents cepes cepet cerc- cerce cercs cerec ceren cerer ceres ceret cerfs cerne cerps cerre cerrs cerse cerss certe certs cesce cescr cesen cesse ceste cests ceten cetes cette cnnfn cnnnn cntrc cpcfc cpctc cpesc crece creen creep creer crees creft cren- crepe crept cresc crese cress crest crete crnce crnec crner crres csere csnet csnps csprs cstcc cteep cten- ctene ctree cttee e-cps e-ten eccen ecser ecspp ectfe eeeee eeens eence eener eenet eense eepee eeten ef-ts efere efetf effer effet effts efnet efren eften efter ences encfs encre enent enese enest enete enets enfce enfer ennes ennet enper enste enten enter entes entre entse epeen epees epene eperc eppes eptfe erecs erect ereen erept erere erest erets ernen ernes ernet ernst erres erses erste ersts erte erter ertes esces escrt esect esene esens esere esnes esp-r espec espen esper espns espre esref essen esser esses esspn essse estce estee estep ester estes estet estre etern etest etete etnre etree etres etten etter ettes fcent fcsts feces feere feers feese feets fence fener fenes fenne ferce feren feres feret ferns ferr- ferre ferse ferte feser fesse fest- feste fests feter fetes fette fnese frcpc frcsc freep freer frees freet frere frese fress frest frets frett ftens ftest ftpfs ftrtt n-p-n ncftp ncree necr- nect- neece neeps neere neese neest neets nefen nefer neffe neffs nefre nefte nenes nente neper neppe nepte neree neret nerfs nerre nerse nerst nerte nerts nesen neset nesse neste nests neten netne netpc nette nnest nnfcc nrens nsecs nsert nsess nsnps nspcc nssfc nstnt ntest ntete p-n-p p-rep pccts pcept pcert pctct peces peece peene peens peent peeps peere peers peert peese peest peete peets pence pene- pener penes penne penns penre pense pent- pente pents pepee pepes peppe pepst pept- perce percs perec peren perer peres peret perfs perne perns pernt perps perre perse persp perst perte pesce pesen peses pesse peste pests peter petes petr- petre pette petts pnetc ppers pptnt prece preef preen prees preff prefs prene prens prent prepn preps prese press prest prete prntr pssst pssts pter- ptere pters ptprc ptpre ptprf ptprn ptprr ptprs ptprt rcpsc rcpts recce recen recep recet recpt rect- recte rects reece reecs reefe reefs reeft reene reens reepe reere reese reest refen refer refet reffe refne refts rence renee rener renes renet renfe renne rense rente rents repec repen repet reppe repps reprt repts rere- reree reres reret resee resen reses reset resse reste restr rests retee reter retes retnr rette retts