dddd ddre dedd dede dedu deed deef deel deer deet defe deff deft deld dele delf dell delt der- dere derf derr dete detr deue deul deur deut dfdt dfer dfrf dftr dred dree dref drel dret drue drut druu dted dtle dtrl dudd dude dudu duel duer duet duff dufu dule dull dult dulu dure durt duru dute duul duur duut edde ede- edel eder edfl edfu edle edru edur eede eedu eeee eefe eefl eele eete eetu efet eft- eftu elde eldr eled elee elef eler elet elfe elft elle ellu elte elue elul erde erdf ered erel erer eret erft erld erle erll erre ertl ertu erur etee etel eter etfe etre ette ettu eude euer eule eur- eure eurt fdlr fdtl fede feed feel feer feet fefe feff feld fele felf fell felt ferd fere ferr fert feru fete fetr fett fetu feud ffee ffff ffrr fftf fldr fled flee fler flet flud flue fluf flur fred free fret frue ft-l fter fudd fude fuel fuet fuff fufu fule full fulu fur- fure furl furr furt fute futu le-u lede ledt leed leef leel leer leet lefe leff left lele lell lelu lerd lere lert lete lett leud leur lfrd llef llet lleu llll llud lrdd lrrr ltee lttr ludd lude lued luef luer lufe luff luft lufu lule lull lulu lurd lure lurt lute rder redd rede redl redr redu reed reef reel reet refd refe reff refl refr reft refu reld rele rell relt rerd rere rert reru retd rete retr rett reue reuf reul reut reuu rfef rffl rldt rlee rlef rleu rred rrle rrrr rtdt rtee rtle rtlt rudd rude rudl rued ruel ruer ruet rufe ruff ruft rule rull rurd rure ruru rute rutl rutt rutu ruud tdff tedd tede teed teef teel teer teet teff tefl teft tel- teld tele tell telt telu ter- tere terf terr teru tete tetr tett tetu teut tldr tre- tred tree tref tret treu trfd trfr trte trtr trud true trut truu tter ttff tttt ttul tude tudu tuel tuer tuet tufe tuff tuft tufu tule tull tulu turd ture turf turr turt turu tute tutl tutt tutu udel uder udet uele uell ufel ufer uffe ulde ulee ulfe ulft ulle ullr ultt ulul urde urdu ure- ured uret urfe urff urft urle urre urte urur urut utel uter uttu uulu uutf uuuu