d-rod ddddd dnuop do-do do-ol dodol dodon dodoo dodro dollo dollu dolno dolon dolor dolpo dondo donon donor doodo doorn dorno doron dorud doull douro dpond droll drood drool droon droop drop- dropo droul droun droup duddo dudon dudou dullu dundo dunno dunod dunun duplo durno duron l-pop l-ron loddo lodno lodro lollo lolol londo loord lopon lopou lopud loron lorun lorup lound lourd louro lplnd luddu lulul lundu lupul lurun lurup n-p-n ndour ndulu nduru nnooo no-do no-no no-op noldo non-u nondo nonno nonop noonu noord nopun nordo noron norro norun nould nu-nu nudol nudur nullo nunon nunun nuoro nuprl nupur nurlu nurun oddup oddur odolo odoul odour odudu oduro ollon ollup ollur olord olour ondol onond onoon onorn onour onpop ooooo oopod oploo opodo oppol oppon ordon ordro orlon orlop ornon orodo orold orolu orono oruro oudon oullo oulon oulun ouoro ourno ourol p-n-p ploop plopp plopu ploud plupp plurn po-on po-po podo- podol podor podul pollo pollu polod polon polop polur pondo ponnu ponor ponup poond poopo poplr popon popop poppo popup porn- porno poro- poron porro porur poulp pound prndl prodd proll prolo proor prop- propl propn propp propr proud prun- pruno pudor pudur pull- pullu pundo punon puppo puro- purul rdllr ro-ro rodl rodon rodor rollo rolon rondo ronno roodu roond roull round rprop rudno rullo rulon rundu runo- runon runup u-pop udol udoll ullur ulno- uloop ulpur ululu uluru undun undur unnun unnur unold unoor unorn unrol unrun unurn up-do upnor upolo upolu uppon uprun urour uuuuu