eeee eefe eero eete eetu eext efeo efet efor eft- eftu eore eoto eoux er-x erer eret erft erfx eroe eroo erre erro ertu erur etee eter etfe etoe etox etre etro ette etto ettu etux euer eur- eure euro eurt exer exfo exo- exor exrx exte extr feer feet fefe feff fefo feof fere fero ferr fert feru fete fetr fett fetu feux fext ffee ffff ffrr fftf foer fofo foof foot for- fore foro forr fort fote foto fott four fout foxe foxx free freo fret frex froe frot frou frue fter fuet fuff fufu fuor fur- fure furo furr furt fute futo futu o-eo oere oeuf ofer off- offe offo offr offu ofor ofre ooer ooff oooo oore oort ore- oreo orer orex orfe orff orfu oro- oroe orof oror orot orro orte orto otee oter oto- otoe otof otoo otor otre otro otte otto ottu otur ouer oufe ouff our- oure ouro ourt out- oute outo ouu- oxer oxo- oxof oxox oxuf oxxo reef reet refe reff refr reft refu reof reot reou rere rero rert reru rete reto retr rett reue reuf reut reuu reux rexx rfef roer roet rofe roff rofo roof roor root roox rore roro rort roru rote roto rotr rott roue rouf rout roux roxo rrrr rtee rtex ruer ruet rufe ruff rufo ruft rure ruro ruru rute ruto rutt rutu teef teer teet teff teft teor ter- tere terf tero terr teru tete teto tetr tett tetu tetx teut text tfot tfox toee toer toet toff tofo toft tofu toof toor toot tore torf toro torr tort toru torx tote toto totr tott tour tout tox- toxo toxt tre- tree tref treo tret treu trex trfr troe troo trot trou trox trte trtr true trut truu trux tteo tter ttff ttoe tttt tuer tuet tufe tuff tufo tuft tufu tuor ture turf turo turr turt turu tute tuto tutt tutu tuuo txtr uext ufer uffe uofo uor- uore ure- uret urex urfe urff urft uro- uroo urox urre urte urur urut uter utfo utor utto uttu uutf uuuu uxor uxue xeer xefe xer- xero xert xexe xfer xoro xote xout xoxo xtro xuxu xxxo xxxx