d-dot d-rod ddddd do-do dodoo dodro dofor doodo doout dopdf dordt dorff dorot dorud dotoo dotto doufu doupt douro droff drood droof droop drop- dropo dropt drott droup drout dtour duddo dudou dufur durtu fodor foord ford- fordo fordp forro forto forud forur fotur fourd fouro fprot frodo frood froop froot froud froup fruto ftord ftrtt fu-fu fuddu furo- furor furud futop futur fuudo oddup oddur odour odttf odudu oduro offof offto ofoto ofour ofpop ooooo oopod opodo opto- optot optto ordro orfor orodo orout ortoo oruro orutu ototo otour otpor ottur ouoro outdo outof outro outto pforp po-po podo- podor poopo poort popop poppo popup poro- porro porto portu porur potof potoo potop potor potro potto pottu pouff prodd proff proft proof proor proot prop- propp propr propt prot- proto proud prout prtor ptprd ptprf ptpro ptprr ptprt ptpru pudor pudur puppo puro- putor putt- putto puttu putuo putup ro-ro rodor rofor roodu rooft roto- rotor rotot rotto routt rprop rptor ruffo rufo- ruutu t-pop t-top to-do todor toffo tofop tofor toord topo- topof topor topot toppo topto topup tordu torpo torro torto tortu torud toto- totoo totop totup tourd touro tprot troff troft trood troop trop- tropo trott troup trout trudo truff trupt truro ttttt tudor tudou tudur tuotu tupou turot turro turtu turup turut tutor tutto tuuru u-pop ufofu up-do upfor upoff upput uptop urour urutu utro- utrop utror uttur uturu ututo uuuuu