dddd ddot ddpo ddre dedd dede dedo dedu deed deef deep deer deet defe deff defo deft deop deor depe depo depp depr dept der- dere derf dero derp derr dete deto detr deue deur deut dfdt dfer dfoe dfrf dftr dod- dodd dode dodo doer doff dood doof doop door doot dope dopo dopp dopr dopt dord dore dorf doro dorp dorr dort doru dotd dote doto dott doud doue douf doup dour dout dpdt dper dred dree dref dret drod drof drop drot drou drue drup drut druu dtdp dted dtor dtot dttp dudd dude dudo dudu duer duet duff dufu duo- dupe dupo dure duro durt duru dute dutp duur duut edde eddo eddp ede- eder edfu edod edou edru edup edur eede eedu eeee eefe eero eete eetu efeo efet efor eft- eftp eftu eode eore eotd eoto epee eper epod epor epot eppo eppp epro eprp epte erde erdf ered erer eret erft erod eroe eroo erpe erre erro ertu erur etee eter etfe etoe etre etro ette etto ettu eude euer eur- eure euro eurt fdot fede feed feer feet fefe feff fefo feod feof ferd fere fero ferr fert feru fete fetp fetr fett fetu feud ffee ffff ffrr fftf fode foed foer fofo food foof foot fopp for- ford fore foro forr fort fote foto fotp fott foud foup four fout fpdt fprf fred free freo frep fret froe frop frot frou frpd frue fter ftop ftpe fudd fude fuet fuff fufu fuor fur- fure furo furr furt fute futo futu o-eo oddd oded odeo oder odet odoo odop odor odot odou odrp odtu odur oedo oere oeuf ofdr ofer off- offe offo offr offu ofor ofre oftp ooer ooff oooo oord oore oort ootp oped opep oper opet opo- opor oppo opto orde ordo ordu ore- ored oreo orer orfe orff orfu oro- oroe orof oror orot orpe orro orte orto orup oted otee otep oter otfp oto- otoe otof otoo otor otpp otre otro otte otto ottu otur oude oued ouer oufe ouff oupe our- oure ouro ourt out- oute outo ouu- pdpr ped- pede pedf pedo peed peep peer peet peff peor peou pepd pepe pepo per- perd pere perf pero perp perr pert peru pete peto petr pett peur peut pfet pfff pffr pfft pfte pod- podd pode podo podu poed poer poet poff pood poof poop poor poot pop- pope popo popp popt pore poro porr port potd pote potf poto pott potu poud pouf poup pour pout pper ppod pppd pppo pppp pprf ppru pptt ppur pre- pred pree pref prep pret preu pro- prod proe prof proo prop prot prou prpd prrd prtp prtr prud prue pruf prut pruu pter ptop ptpd ptrd ptrf pu-e pudo pudu pued pueo puer puet pueu puff puft pupe pupu pur- pure puro purp purr puru put- pute puto putt putu rder redd rede redo redr redu reed reef reep reet refd refe reff refr reft refu reod reof reop reot reou repe repo repp repr rept repu rerd rere rero rert reru retd rete reto retr rett reue reuf reup reut reuu rfef rodd rode rodo roed roer roet rofe roff rofo rood roof roop roor root rope ropo rore roro rort roru rote roto rotr rott roud roue rouf roup rout rpdp rpet rpoe rpof rptd rred rrrr rtdt rtee rttp rudd rude rudo rudp rued ruer ruet rufe ruff rufo ruft rupe rupp rupt rurd rure ruro rurp ruru rute ruto rutt rutu ruud tdff tdor tedd tede teed teef teer teet teff teft teor tepe tepp tepu ter- tere terf tero terp terr teru tete teto tetr tett tetu teut tfot tfpt tftp todd tode todo todt todu toed toee toer toet toff tofo toft tofu tood toof toor toot top- topd tope topf topo topp topt topu tord tore torf toro torp torr tort toru totd tote toto totr tott toup tour tout tpdf tpdu tped tper tppd tppp tppr tpte tptp tptr tput tre- tred tree tref treo tret treu trfd trfr trod troe troo trop trot trou trpe trpp trte trtr trud true trut truu tteo tter ttff ttoe ttop tttt tude tudu tuer tuet tufe tuff tufo tuft tufu tuor tupe tupo tupu turd ture turf turo turp turr turt turu tute tuto tutt tutu tuuo u-rp uder udet udoo udop udot udpd ufer uffe uftp uofo uor- uore updf updo uped upor uppe uppp uppu upto upup urde urdu ure- ured uret urfe urff urft uro- uroo urpo urre urte urup urur urut utep uter utfo utor utpd utto uttu uutf uuuu