dddd ddre dedd dede dedu deed deef deem deer deet defe deff deft dem- demd deme demu der- dere derf derm derr dete detr deue deum deur deut dfdt dfer dfrf dftr dmdt dmft dmtf dred dree dref drem dret drue drum drut druu dted dudd dude dudu duer duet duff dufu dume dumm dure durt duru dute duur duut edde eddm ede- edem eder edfu edme edrm edru edur eede eedu eeee eefe eete eetu efet efmd eft- eftu emdt emer emet emeu emme emmu emre emte erde erdf ered erem erer eret erft erme erre ertu erum erur etee etem eter etfe etre etrm ette ettu eude eudm euer eur- eure eurt fede feed feem feer feet fefe feff feme femm ferd fere ferm ferr fert feru fete fetr fett fetu feud ffee ffff ffrr fftf fred free frem fret frue frum fter fudd fude fuet fuff fufu fume fur- fure furm furr furt fute futu mddm mdef mdme mdmf mdud medd mede medu meed meef meem meer meet mefe meff meme memr memu mer- merd mere merf merm mert meru met- mete mett metu meum mftf mmdf mmfd mmff mmmd mmmm mmrf mrdd mred mree mrmd mrtm mrtt mrud mtff mtre mtrr mttr mudd mude mudu mued muee muet muff mufu mume mumm mumu murd mure murr murt muru mute mutt mutu muut rder redd rede redr redu reed reef reem reet refd refe reff refr reft refu reme rerd rere rert reru retd rete retr rett reue reuf reut reuu rfef rfem rmtu rred rrrr rrum rtdt rtee rtfm rudd rude rued ruer ruet rufe ruff ruft rume rumm rumt rurd rure ruru rute rutt rutu ruud tdff tedd tede tedm teed teef teem teer teet teff teft teme temu ter- tere terf term terr teru tete tetr tett tetu teut tmed tmtt tre- tred tree tref trem tret treu trfd trfm trfr trmd trmu trte trtr trud true trut truu tter ttff tttt tude tudu tuer tuet tufe tuff tufm tuft tufu tume tumu turd ture turf turm turr turt turu tute tutt tutu tuum udem uder udet ufer uffe umde umer umet umff umut urde urdu ure- ured uret urfe urff urft urre urte urum urur urut uter uttu uutf uuuu