perp perr pers pert pese peso pess pest pete peto petr pets pett pfet pfff pffr pfft pfps pfte ple- plee pleo ples plet plff ploo plop plos plot plpp plss pltf pltt poel poer poes poet poff pole poll polo pols polt poof pool poop poor poos poot pop- pope popo popp pops popt pore poro porr pors port pose poso poss post pote potf poto pots pott pper pple pplo ppos pppo pppp ppps pprf ppsf ppss ppts pptt pre- pree pref prel prep pres pret prfs prle prlr prls pro- proe prof prol proo prop pros prot prps prrs prse prsl prso prss prtp prtr psel psfs psol psos pspp pspr psps psrp psse psso psst psts pter ptol ptop ptrf reef reel reep rees reet refe reff refl refr refs reft rele rell relo relp rels relt reof reol reop reos reot repe repl repo repp repr reps rept rere rero rers rert rese reso resp ress rest rete reto retr rets rett rfef rffl rlee rlef rlls roel roer roes roet rofe roff rofl rofo role rolf roll rolo rolp rolt roof rool roop roor roos root rope ropo rops rore roro rort rose roso rosp ross rost rote rotl roto rotr rots rott rpet rpls rpoe rpof rpos rpps rpts rrle rrrr rrsp rsee rslp rsos rspo rsps rsre rssl rstp rsts rtee rtes rtle rtls rtlt rtps rtss rttp rtts s-os se-e se-f se-o se-s se-t seef seel seep seer sees seet seff sefl seft sele self sell selo sels selt seol seop sepe sepo sepp sepr seps sept sere serf sero serp serr sers sert sese seso sess sest set- sete setf setl seto sets sett sfer sfls sfor sfos sfro sfss sftp sfts slee slep sler sles slet slft sllp sloe sloo slop slos slot slpp slps slre slrp slrs slst slts soel soeo soep soes sofo soft sole solf soll solo solp solr sols solt soof sool soop soor soos soot sope sopo sopp sops sore soro sorr sors sort sose soso soss sost sote sotl soto sotp sots spee spef spel sper spes spet spfs sple splo splp splr spls spoo spop spor spos spot sppf spps spro sprs spse spso spsp spss spst spto sptr spts sreo sres sros srps srpt srsp srtp srtr ssee ssep sses sset ssfl ssfp ssle sslp sslt ssop ssot sspe sspf sspl sspo ssps sspt ssrl ssrs sssf ssss sstl sstp ssts stee stef stel steo step ster stes stet stle stlo stlt stoe stof stol stoo stop stor stos stot stpf stpp stps stre stro strs stsf stss sttr teef teel teer tees teet teff tefl teft tel- tele tell telo tels telt teor teos tepe tepp ter- tere terf tero terp terr ters tese tesl teso tesp tess test tete teto tetr tets tett tfot tfpt tfrs tfss tftp tlos tlrs toee toer toes toet toff tofo toft tol- tole toll tolo tolt toof tool toor toos toot top- tope topf topo topp tops topt tore torf toro torp torr tors tort tose toso toss tost tote toto totr tots tott tper tpls tpol tppp tppr tprs tpte tptp tptr tre- tree tref treo tres tret trfr troe troo trop tros trot trpe trpp trps trst trte trtr tses tset tsfl tsol tsop tsos tspo tsps tspt tsse tssf tssr tsst tsts tteo tter ttff ttoe ttop ttss tttt

-tree e-pro eeeee eeler eepee eeros eesof ef-ts efere efetf effer effet effts efore eftel efter el-op eleet elefs elele eleo- eleos eleot elers eless elest elets ellel eller elles ellet elloe ellos eloee eloff elole eloor elope elops elore eloro eloso elote elpee elper elros elser elses elsol elspe eltro eltrs eofor eorre eoste epees epoll epops epopt epost epote eppes eptfe erept erere erest erets erles eroes eroor eroos erore erose eross eroto erpel erres errol error erses erste ersts erte ertel erter ertes esels esere esoft esops esp-r espel esper espol espoo espot espre esref esrel essel esser esses essor essse estee estel estep ester estes estet estop estos estre estro etest etete etoll etool etops etoro etree etres ettel etter ettes ettle feele feels feeor feere feers feese feets fefor felet felle fells felos felte felts feltt feoff feole ferel feres feret ferle ferlo ferr- ferre ferro ferse ferte feser fesse fesso fest- feste festo fests fetel feter fetes feto- fetor fette fleer flees fleet flere flero flers flert flete flett floes floop floor flops flore floro flose floss flote floto fofos folet folle follo foole fools foore foose foote foots fopos fore- forel foreo fores foret foros forro forse forso forss forst forte forto forts fosse fotos fotte fprot freel freep freer frees freet frels frere frese fress frest frets frett froes froop froot frore frose frost frote frots fspot fstop ftest ftlee ftpfs ftrtt l-pop leell leeof leere leers leert leese leest leets leffe lefse lefts lelep leles lelle leose lepel leper lepet lepo- lepor leppe lepre lept- lepto lerer leros lerot lerps leser lesse leste lesto letos letot letre lette letto letts llers llrrs loess lofer loffe lofos lofte lofts loler lollo lolls lolol lolos looer looft lools loops loopt loore loose loote loots loper lopes lorel loreo lorer lores loret loros lorre losee losef losel loser loses losse loste lostl losts lotof lotor lotos lotrs lotso lotte lotto lotts lsers o-fer oelet oelse oeppo oerel oerle oesel oeses oeste offer offof offre offto oflos ofoto ofpop ofsee ofset ofsle oftel ofter oleo- oleos olere oless olest olleo oller olles olost olots olpes oltet oltos oltre oo-er ooooo ooser ooste opele opels opelt opepe opere opers oploo oplot opole opose oppel opper oppol oppos opter opto- optot optto orell orels oreo- oreos orere orero orest orfeo orfes orfoe orfor orles orlet orlop orlos oroer orose oroso orost orret orser orses orter ortes ortet ortoo osell osete osler oslet osole ososo ospel osper osse- ossel osseo osser osset osslt ossos osstp oste- ostel osteo ostep