eeee eefe eeke efke ejer ekek eker ekur erer erke erre erur euer eur- eure f--k feek feer fefe feff feke fere ferk ferr feru ffee ffff ffrr free frue fuff fufu fuke fukk fuku fur- fure furr jeer jefe jeff jeju jeke jere jerk jeru jeuk jeur juju juke juku jure jurr keef keek keer keff kefr kejj keke keku ker- kere kerf kerk kerr keru keur kfer kfff kffk kfjk kfre kfrj kfrr kfru kjee kjef kjer kjff kjfk kjjf kjjj kjjk kjjr kjke kjkj kjkk kjrf kkfr kkjk kkkj kkkk kkre kkrf kkrk kkrr kkuu kree kref krej krek kreu krfe krff krje krjk krke krkk krkr krku krre krrf krrk krrr krue kruf kruk krur kuek kueu kuff kufr kuje kujj kuju kuke kukk kuku kure kurk kurr kuru kuuk kuur kuuu reef reek refe reff refr refu reke rere reru reue reuf reuk reuu rfef rkkf rrrr ruer rufe ruff ruke rukk ruku rure ruru ufer uffe ufuk ukek ukeu ukur ure- urfe urff urke urre uruk urur uuuu