-hou dddd dhod dhor dhur dod- dodd dodo dohm dohr doko domm domo dood dook doom door dord dork dorm doro dorr doru doud douk doum dour drmk drod droh drom drou druk drum druu dudd dudo dudu duhr duhu duku dumh dumm duo- durk duro duru duur hdmk hdod hdrm hhhh hkmo hmmm hodh hodk hodr hohm hoho hoko hoku hom- homo homr homu hood hook hoom hoor hord hork horo horr houd houk hour hrod hrud hudd hudo hudu huhu hukm humh humm humo huor hurd hurk huro hurr huru kddd kddk kddr kdkd kdkk kdko kdkr kdmd kdmo kdmr kdok kdom kdrm kdro kdur khdk khdr khhk khhm khho khkk khkm khkr khmo khmr khmu khok khom khor khou khrd khrk khro khrr khud khuk khum khur kkdd kkdm kkdo kkhh kkhk kkhr kkkk kkmk kkmo kkmr kkoh kkoo kkor kkrh kkrk kkro kkrr kkuu kmdo kmdr kmhd kmhk kmhm kmhr kmkk kmko kmmk kmmm kmmo kmmr kmod kmok kmom kmor kmou kmro kmrr kmud kmur kodk kodm kodo kodu kohd kohh kohm koho kohr kohu kokh kokk koko kokr koku komo komr kook kooo koor koou kord kork koro korr koru koum kour kouu krdd krdm krdo krdr krdu krkd krkh krkk krko krkr krku krmd krmh krmo krmr krod kroh krok krom kroo kror krrk krrm krro krrr kruh kruk krum krur kudd kudo kudu kuhm kuhu kukh kukk kuku kumm kumo kumr kumu kuok kuoo kurd kurk kurm kuro kurr kuru kuuk kuur kuuu mddm mdmk mdud mhmm mhmr mhor mmhm mmmd mmmh mmmm mmod mmor modd modh modo modu mohm moho mohr mohu moko momo momu mood mook moor mord mork moro moru moud mouk mour mrdd mrkh mrkr mrmd mrud mruk mudd mudu muhr muhu muko mumm mumo mumu murd murk muro murr muru oddd odmr odoh odom odoo odor odou odum odur ohho ohoh ohok ohum okko okmo okok okom okor okro okur omo- omoo omor omro omuo ooho ooku oooh oooo oord ordo ordu orko ormo oro- orok orom oror orro orum oudh our- ouro ouu- rhod rhoh rhum rodd rodo rohm rohr rohu rokh rokk roko rokr roku romd romk romm romo rood rook room roor rork roro roru roud rouh rouk roum rrkm rrrr rrum rudd rudo ruhh ruhm ruhr rukh rukk ruku rumm rumo ruok rurd ruro ruru ruud udoh udoo uduk uh-d uhoh uhok uhuh ukko ukok ukum ukur ummo umok umor uomo uor- urdu urho uro- urok urom uroo urrh uruk urum urur uuuu