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eeee eefe eero eery eete eetu efeo efet effy efor eft- eftu eore eoto erer eret erft eroe eroo erre erro ertu erur erye etee eter etfe etoe etoy etre etro ette etto ettu etty euer eur- eure euro eurt eury eyer eyet eyey eyot eyre eyry eyte eyyr feer feet fefe feff fefo feof fere fero ferr fert feru fery fete fetr fett fetu feyr feyt ffee ffff ffrr fftf foer fofo foof foot for- fore foro forr fort fote foto fott foty four fout foyt free freo fret frey froe frot frou frue frye fter ftfy fuet fuff fufu fuor fur- fure furo furr furt fury fute futo futu fuyt fuyu fyeo fyfe fyre fyry o-eo oere oeuf oeye oeyo ofer off- offe offo offr offu offy ofor ofre ooer ooff oofy oooo oore oort oory ooty ore- oreo orer orey orfe orff orfu oro- oroe orof oror orot oroy orro orry orte orto otee oter oto- otoe otof otoo otor otoy otre otro otry otte otto ottu otur otyr ouer oufe ouff our- oure ouro ourt out- oute outo outy ouu- ouyr oyee oyer oyeu oyou oyre reef reet refe reff refr reft refu reof reot reou rere rero rert reru rery rete reto retr rett rety reue reuf reut reuu reye rfef roer roet roey rofe roff rofo roof roor root rore roro rort roru rory rote roto rotr rott roty roue rouf rout rouy roye royt rrrr rtee ruer ruet rufe ruff rufo ruft ruoy rure ruro ruru rute ruto rutt rutu ruty ryet ryfe ryff ryft ryot rytt ryue ryyf ryyt teef teer teet teff teft teor ter- tere terf tero terr teru tery tete teto tetr tett tetu teut teye teyr tfot to-y toee toer toet toey toff tofo toft tofu toof toor toot tore torf toro torr tort toru tory tote toto totr tott toty tour tout toyo toyt tre- tree tref treo tret treu trey trfr troe troo trot trou troy trte trtr true trut truu try- trye tryo tteo tter ttff ttoe ttoy tttt tuer tuet tuey tufe tuff tufo tuft tufu tuor ture turf turo turr turt turu tury tute tuto tutt tutu tuty tuuo tuye tyee tyer tyet tyfe tyff tyft tyr- tyre tyrf tyro tyrr tyte tyto tytt tyty ufer uffe uofo uor- uore ure- uret urey urfe urff urft uro- uroo urre urry urte urur urut uter utfo utor utoy utto uttu uutf uuuu uyre ye-u yeer yeet yefe yeff yeft yeof yeot yere yero yerr yert yery yete yeto yett yeue yeye yeyo yeyr yfet yfte yoff yoof yoot yore yoro yort yory yote yott youe youf your yout yoye yoyo yrof ytre yuer yuff yuft yufu yure yurt yury yute yuto yutu yuty yuye yuyu yyfe yyff yyyy

-tree eeeee ef-tu efere efetf effer effet effry efore efter efuru efutu eofor eorre erere eroor erore eroto errey error errtu erte erter etete etoro etour etouy etree etter eturu euery euro- eurre eury- eyeof eyere eyeto eyrer feeor feere fefor feoey feoff feret ferr- ferre ferro ferry ferte feter feto- fetor fette feuer feute feyer feyre fooey foofy foore foote footy fore- foreo foret forro forte forto forty forur fotte fotur fouee fouet foure fouro fouty foyer foyte freer freet frere frett freur freyr froot frore frory frote froyo frute fruto fryer ftrtt fu-fu fuero fuffy furey furo- furor furry furyo futur fyffe fytte o-fer oeyer oeyre offer offof offoy offre offto ofoto ofour ofrye ofter ofyou oo-er ooooo oreo- orere orero oreye orfeo orfeu orfey orfoe orfor oroer orout orret orrey orter ortet ortoo oruro orutu oryou otere otero ototo otour otter ottey ottur ottyr oture otuyo otyre ouert ouoro oure- outer outof outre outro outto oyoor oyrur reefe reeft reefy reere refer refet reffe reffo refry refut rere- reree reret retee reter retro retry rette retto reuer reuet reute reyff reyte ro-ro roero roffe rofor rooer roofe rooft roofy roore roote rooty rooue rorer rorty roter roto- rotor rotot rotte rotto rotye rouer rouet roufe roure route routt routy royer royet ruere ruete ruffe ruffo ruffy rufo- rurey ruter rutey rutte rutty ruutu ryffe ryfte rytro rytte ryuet ryyty teety tefe teret tereu teror