-er eee eef eep eer ees eet ef- efe eff efp efr efs eft ep- epe epf epp epr eps ept ere erf erp err ers ert es- ese esf esp esr ess est ete etf etp etr ets ett fee fef fep fer fes fet ffe fff ffp ffr ffs fft fpe fpp fpr fps fpt fre frf frp frr frs frt fse fsf fsp fsr fss fst fte ftf ftp ftr fts ftt p-p pee pef pep per pes pet pfe pff pfp pfr pfs pft ppe ppf ppp ppr pps ppt pre prf prp prr prs prt ps- pse psf psp psr pss pst pt- pte ptf ptp ptr pts ptt re- ree ref rep rer res ret rfe rff rfp rfr rfs rft rpe rpf rpp rpr rps rpt rrf rrp rrr rrs rrt rse rsf rsp rsr rss rst rte rtf rtp rtr rts rtt se- see sef sep ser ses set sfe sff sfp sfr sfs sft spe spf spp spr sps spt sr- sre srf srp srr srs srt ss- sse ssf ssp ssr sss sst ste stf stp str sts stt te- tee tef tep ter tes tet tfe tff tfp tfr tfs tft tpe tpf tpp tpr tps tpt tre trf trp trr trs trt tse tsf tsp tsr tss tst tte ttf ttp ttr tts ttt

eeee eees eefe eeps eers eese eete eets efes efet effs eft- eftp efts epee eper epes eppp epps eprp eprs epsf epsp epss epte erer eres eret erfs erft erpe erps erre errs erse erst erts esee eser eses eset esfp esfs espe espp esps esse essp esst este estp estr ests etee eter etes etfe etre ette feer fees feet fefe feff feps fere ferr fers fert fese fess fest fete fetp fetr fets fett ffee ffff ffps ffrr ffss fftf fprf free frep fres fret frps frst fspf fssf fssp fter ftpe ftps ftrs ftse ftsr peep peer pees peet peff pefs pepe peps per- pere perf perp perr pers pert pese pess pest pete petr pets pett pfet pfff pffr pfft pfps pfte pper pppp ppps pprf ppsf ppss ppts pptt pre- pree pref prep pres pret prfs prps prrs prse prss prtp prtr psfs pspp pspr psps psrp psse psst psts pter ptrf reef reep rees reet refe reff refr refs reft repe repp repr reps rept rere rers rert rese resp ress rest rete retr rets rett rfef rpet rpps rpts rrrr rrsp rsee rsps rsre rstp rsts rtee rtes rtps rtss rttp rtts se-e se-f se-s se-t seef seep seer sees seet seff seft sepe sepp sepr seps sept sere serf serp serr sers sert sese sess sest set- sete setf sets sett sfer sfss sftp sfts spee spef sper spes spet spfs sppf spps sprs spse spsp spss spst sptr spts sres srps srpt srsp srtp srtr ssee ssep sses sset ssfp sspe sspf ssps sspt ssrs sssf ssss sstp ssts stee stef step ster stes stet stpf stpp stps stre strs stsf stss sttr teef teer tees teet teff teft tepe tepp ter- tere terf terp terr ters tese tesp tess test tete tetr tets tett tfpt tfrs tfss tftp tper tppp tppr tprs tpte tptp tptr tre- tree tref tres tret trfr trpe trpp trps trst trte trtr tses tset tsps tspt tsse tssf tssr tsst tsts tter ttff ttss tttt

-tree eeeee eepee ef-ts efere efetf effer effet effts efter epees eppes eptfe erept erere erest erets erres erses erste ersts erte erter ertes esere esp-r esper espre esref esser esses essse estee estep ester estes estet estre etest etete etree etres etter ettes feere feers feese feets feres feret ferr- ferre ferse ferte feser fesse fest- feste fests feter fetes fette freep freer frees freet frere frese fress frest frets frett ftest ftpfs ftrtt p-rep peeps peere peers peert peese peest peete peets pepee pepes peppe pepst pept- perer peres peret perfs perps perre perse persp perst perte peses pesse peste pests peter petes petr- petre pette petts ppers preef prees preff prefs preps prese press prest prete pssst pssts pter- ptere pters ptpre ptprf ptprr ptprs ptprt reefe reefs reeft reepe reere reese reest refer refet reffe refts repet reppe repps reprt repts rere- reree reres reret resee reses reset resse reste restr rests retee reter retes rette retts rperf rrsps rsssf seeps seere seers seese seest seete sefer sefes seffe sefte sepet sept- septs seref serer seres seret serfe serff serfs serpe serps serre serse serss sert- serte serts seser seses sesse seste setee seter setse setsf sette setts speer spees speet spere sperr spert spete spets spree spres spret sssss steep steer stees steet steff step- stepe stepp steps stept stere sterr sters stert stete stets stree strep stret strrs sttep teepe teers teese teest teets tefe teffs tepee tepes tepet teres teret terps terre terrs terse tert- tespe tesse teste tests teter tetes tetr- tette tppts treer trees treet trefe treff trefs trepp trept trere tres- trese tress trest trete trets trett tsere tsets ttest ttttt

effere effete efreet efter- efters epesse eretes errest errett erster espere espers essert essess esssse estees esters estree estres estter esttes f-test feeres feeses ferfer ferrer ferres ferret fertee ferter fesere fesser fesses fester fetter fettes freepr freeps freers freese freest frefre freres fresse fresst frette fretts fterer fterre peepee peeper peerer peerse peeter peetre peffer pepper perere peress perfes perper perpet perree perret persee perses persse perter pertre pespes pesser pester pestre peteet peters petree petrer petter pettet pppppp ppsspp preers preest prefer prefet preffe presee preses preset press- presse pressf preste prests preter pretre prette pstree r-tree reefer reeffe reeper reeser reeses reests refeet refeff refers refert refete refret refter repete repets repper repref rerees resees resets respet rester restes restte reteer retees reteet retere retest retree retret retter see-er seesee seetep sepses septer septet septre serefe serere serers serest serpet serre- serres serret sesser sesses sester sestet sestre setees