do-nut dododo dondon donnot donoor donour doorto dordon dornot dorond dorood dororo dorton dotdot dotodo doudou dounto dourou doutou doutro drouot duddon dundun dundur dunoon dunord dunton durtro dutton n-toon nnundu nodont non-no nonodd nonono nonoon noonoo noonor noonto norton notour notout notron notton nottoo noturn nounou ntuntu nunton nurton odont- odonto odoorn ontour oooooo oordoo ordoru oroton orrour ortrud ottoor ourdon ouroun ourton outour outrun outtro roddon rondon ronnon ronron rooton roound rorodt rotour rotout rotrou rotton rotund roudno roundo roundu rounou routot ruddon rudnun rudrur run-on runout runton rurutu rutour to-on tondon tonono tonoro tonour tonton tootoo tornod torodo tororo tortor tortou totnor totoro totrot toudon toudou touron tourou touton toutou toutuo trodon tronto trotro tround trudon truont tundun tuotuo turnon turnor turnto turron turton turtur tururu tutour tutton tuttut u-turn undurn unroot untorn untrod unturn urodon urturn utnoor utroor