dddd ddie ddre dedd dede dedi dedo deed deef deek deer defe deff defi defo deid deie deif deir dek- deke deor der- dere derf deri derk dero derr dfer dfoe dfrf dfri dide didi dido died dief dier dif- diff diii dike diki diko dior dird dire dirk dirr dkid dod- dodd dode dodi dodo doek doer doff doid doke doki doko dood doof dook door dord dore dorf dori dork doro dorr dred dree dref drei drek drie drif drod drof edde eddi eddo ede- edei eder edie edif edik edod eede eeee eefe eeke eero efeo effi efik efke efor eid- eide eidi eido eidr eied eiei eier eike eiki eiko eird eire eked ekek eker ekki ekoi eode eoir eore eori erde erdf erdi ered erei erer erie erik erio erke erki erod eroe eroi eroo erre erro f--k fede fedi feed feek feer fefe feff fefi fefo feid feie feio feir feke feko feod feof ferd fere ferk fero ferr ffee ffff ffii ffrr fide fidf fido fief fier fife fiff fifi fifo fiii fike fiki fioe fior fire firk fode foed foer fofo foid foie foke foki food foof fook for- ford fore fori fork foro forr fred free frei freo frid frie frik frio froe iddo ided idee idef ideo ider idid idie idio idir idre idrf idro iedr ieie ieio iere ieri ifer ifid ifor ifrf ifri iide iied iiie iiii iiio iioi iioo ikee iker ikid ikki ikko ikoo ikri iod- iodd iode iodo ioee ioii ioio ioke ioko ioof iooi iooo iore iori irdo ired iree irer irfe iri- irid irie irio irki irod irre irri k-id kddd kddf kddi kddk kddr kdef kdei kdfi kdfo kdfr kdio kdkd kdkk kdko kdkr kdoe kdok kdrf kdri kdro kedd kede kedi kedo kedr keed keef keek keer keff kefr keid keif keii keik keio keir keke keki keko keok ker- kere kerf keri kerk kero kerr kfed kfer kfff kffk kfio kfir kfok kfoo kfor kfrd kfre kfri kfro kfrr kidd kide kidi kidk kido kidr kief kier kife kiff kifr kiid kiii kiik kikd kikf kiki kikk kiko kikr kiod kioe kioi kiok kioo kirf kiri kirk kiro kirr kkdd kkdo kked kkfi kkfr kkid kkik kkkk kkoo kkor kkre kkrf kkrk kkro kkrr kode kodi kodk kodo koed koei kofe koff kofi kofk kofo koii koir koke kokf koki kokk koko kokr kooi kook kooo koor kord kore korf kori kork koro korr krdd krde krdo krdr kred kree kref krei krek kreo krfd krfe krff krfo krid krik krio krkd krke krki krkk krko krkr krod kroe krof kroi krok kroo kror krre krrf krri krrk krro krrr o-eo oddd oddi oded odei odeo oder odie odio odir odoo odor oedo oeid oere ofdr ofek ofer off- offe offo offr ofid ofik ofor ofre oido oier oiii oike oiko oire oked oker okie okir okko okok okor okre okro oodi ooer ooff ooid oooo oord oore orde ordo ore- ored orek oreo orer orfe orff orfi ori- orid orie orif orio orke orko oro- oroe orof orok oror orri orro rder rdio redd rede redi redo redr reed reef reek refd refe reff refi refr reid reif reii reik reir reke reki reko reod reof rerd rere reri rero rfdi rfef rfid ridd ride ridi rido ried rief riek rier rife riff riif rike riki rikk rire riri rkkf rodd rode rodi rodo roed roer rofe roff rofo roid roif roik roio roir roke roki rokk roko rokr rood roof rooi rook roor rore rori rork roro rred rrif rrrr