dddd ddre dedd dede dedo dedu deed deef deel deer defe deff defo deld dele delf dell delo deol deor der- dere derf dero derr deue deul deur dfer dfoe dfrf dod- dodd dode dodo doel doer doff dold dole dolf doll dolo dolu dood doof dool door dord dore dorf doro dorr doru doud doue douf doul dour dred dree dref drel drod drof drol drou drue druu dudd dude dudo dudu duel duer duff dufu dule dull dulo dulu duo- dure duro duru duul duur edde eddo ede- edel eder edfl edfu edle edod edou edru edur eede eedu eeee eefe eefl eele eero efeo efor elde eldr eled elee elef eleo eler elfe elle ello ellu elod elro elue elul eode eole eolo eore eorl erde erdf ered erel erer erld erle erll erod eroe erol eroo erre erro erur eude euer eule eur- eure euro fdlr fede feed feel feer fefe feff fefo feld fele felf fell felo feod feof ferd fere fero ferr feru feud ffee ffff ffrr fldr fled flee fler flod floe floo flor flou flud flue fluf fluo flur fode foed foer fofo fold fole foll folo folr food foof fool for- ford fore forl foro forr foud foul four fred free freo froe frol frou frue fudd fude fuel fuff fufu fule full fulu fuor fur- fure furl furo furr ldeo le-u lede ledo leed leef leel leer lefe leff lele lell lelo lelu leod leof leor leou lerd lere lero leud leur lfrd llef lleu llll llod lloo llud lode loeu lofe loff lold lole loll lolo lood looe loof lool loor lord lore loro loud loue loul lour louu lrdd lrrr ludd lude ludo lued luef luer lufe luff lufu lule lull lulu lurd lure o-eo oddd oded odel odeo oder odle odoo odor odou odrl odur oedo oele oere oeuf ofdr ofer off- offe offo offr offu ofor ofre olde ole- oled olef oleo oler olfe olle ollo olof olor olur ooer ooff oold oolo oooo oord oore orde ordo ordu ore- ored orel oreo orer orfe orff orfu orle orlo orlu oro- oroe orof oror orro oude oued ouer oufe ouff ould oule oulu our- oure ouro ouu- rder redd rede redl redo redr redu reed reef reel refd refe reff refl refr refu reld rele rell relo reod reof reol reou rerd rere rero reru reue reuf reul reuu rfef rffl rlee rlef rleu rodd rode rodo roed roel roer rofe roff rofl rofo rold role rolf roll rolo rood roof rool roor rore roro roru roud roue rouf roul rred rrle rrrr rudd rude rudl rudo rued ruel ruer rufe ruff rufo rule rull rulo rurd rure ruro ruru ruud udel uder udoo uele uell ufel ufer uffe ulde ulee uleo ulfe ulle ullo ullr ulo- ulul uofl uofo uor- uore urde urdu ure- ured urfe urff urle uro- urol uroo urre urur uulu uuuu