dododo doorto dorood doropo dororo dotdot dotodo doudou dourou doutou doutro dropto drouot duport durtro oooooo oordoo opdorp oporto optoro optout ordoru ordrup orrour ortrud ottoor oudorp outour output outrup outtop outtro poduru poodur poopoo pop-up popduo popopo poporo popout poppop poptop pottop poupou pppppp propup propur proto- prutot pupput purpur put-up putour putout putput puttoo puttur rootup rorodt rotour rotout rotrou routot rudrur ruptor rurutu rutour to-put tootoo top-up toporu topout toppop torodo tororo torpor tortor tortou tot-up totopo totoro totrot toudou tourou toutou toutuo tropo- troppo trotro tuotuo turtur tururu tutour tuttut up-put uppoor upprop uproot uropod uruppu utroor