d-rod ddddd do-do do-ol dodol dodoo dodro dollo dollu dolor dolpo doodo dorud doull douro droll drood drool droop drop- dropo droul droup duddo dudou dullu duplo l-pop loddo lodro lollo lolol loord lopou lopud lorup lourd louro luddu lulul lupul lurup oddup oddur odolo odoul odour odudu oduro ollup ollur olord olour ooooo oopod oploo opodo oppol ordro orlop orodo orold orolu oruro oullo ouoro ourol ploop plopp plopu ploud plupp po-po podo- podol podor podul pollo pollu polod polop polur poopo poplr popop poppo popup poro- porro porur poulp prodd proll prolo proor prop- propl propp propr proud pudor pudur pull- pullu puppo puro- purul rdllr ro-ro rodl rodor rollo roodu roull rprop rullo u-pop udol udoll ullur uloop ulpur ululu uluru up-do upolo upolu urour uuuuu