dddd dod- dodd dodg dodo dog- dogg dogo dogu dond dong donn dono donr dood doon door dord dorn doro dorr doru doud doug doun dour drno drod drog dron drou drug druu dudd dudo dudu dugu dung dunn duno duo- duon durg durn duro duru duur gdor gggg ggrn gnod gnoo gnrr godo gogo gon- gond gong gonn gono gonu good goog goon goor gord gorg gorn goro gorr gou- goud goug goun gour grod grog gron groo gror grou grrr grug grun grur gudo gudu gugg gugu gund gung gunn gurd gurg gurn guro gurr guru nddo ndor ngon ngor ngou ngur nguu nngn nnnn nodo nodu nogg nogo non- nong nonn nono nonu noo- noon nooo noor nor- nord norg norn noro norr noun nour nron nrrd nudd nudo nung nunn nuno nuon nurd nurn nurr nuru oddd odon odoo odor odou odur ogod ogog ogon ogou ogro ogun ondo ongo ongu onno onod onon onor onur oooo oord ordn ordo ordu orgn orgo orno oro- oron oror orro oun- ound oung our- ourn ouro ouu- rnod rodd rodo rogg rogo rond rong rono rood roog roon roor roro roru roud roun rrrr rrun rudd rudo rugg rund rung runn runo rurd ruro ruru ruud ruun udon udoo udun uggo ugod ugro ugur uguu undo ungo ungu unno unon unro uor- urdu urgu uro- uroo urun urur uuno uuuu