dddd ddre dedd dede dedu deed deef deel deer defe deff deld dele delf dell der- dere derf derr deue deul deur dfer dfrf dred dree dref drel drue druu dudd dude dudu duel duer duff dufu dule dull dulu dure duru duul duur edde ede- edel eder edfl edfu edle edru edur eede eedu eeee eefe eefl eele elde eldr eled elee elef eler elfe elle ellu elue elul erde erdf ered erel erer erld erle erll erre erur eude euer eule eur- eure fdlr fede feed feel feer fefe feff feld fele felf fell ferd fere ferr feru feud ffee ffff ffrr fldr fled flee fler flud flue fluf flur fred free frue fudd fude fuel fuff fufu fule full fulu fur- fure furl furr le-u lede leed leef leel leer lefe leff lele lell lelu lerd lere leud leur lfrd llef lleu llll llud lrdd lrrr ludd lude lued luef luer lufe luff lufu lule lull lulu lurd lure rder redd rede redl redr redu reed reef reel refd refe reff refl refr refu reld rele rell rerd rere reru reue reuf reul reuu rfef rffl rlee rlef rleu rred rrle rrrr rudd rude rudl rued ruel ruer rufe ruff rule rull rurd rure ruru ruud udel uder uele uell ufel ufer uffe ulde ulee ulfe ulle ullr ulul urde urdu ure- ured urfe urff urle urre urur uulu uuuu