dddd ddot dntt dnut dod- dodd dodg dodo dog- dogg dogo dogu dond dong donn dono donr dont dood doon door doot dord dorn doro dorr dort doru dotd doto dott doud doug doun dour dout drno drod drog dron drot drou drug drut druu dtng dtor dtot dudd dudo dudu dugu dung dunn duno dunt duo- duon durg durn duro durt duru duur duut gdor gdrt gggg ggrn gnod gnoo gnrr godo gogo gon- gond gong gonn gono gonu good goog goon goor goot gord gorg gorn goro gorr gort gotd goto gott gou- goud goug goun gour gout grod grog gron groo gror grot grou grrr grug grun grur grut gudo gudu gugg gugu gund gung gunn gunt gurd gurg gurn guro gurr gurt guru guto gutt gutu nddo ndnt ndor ndut ngon ngor ngou ngtn ngur nguu nngn nnnn nnot nntn nodo nodu nogg nogo nogt non- nong nonn nono nont nonu noo- noon nooo noor noot nor- nord norg norn noro norr nort not- noto nott noun nour nout nron nrrd ntnd ntnu ntru ntto nttr nudd nudo nung nunn nuno nunt nuon nurd nurn nurr nurt nuru nutt nutu oddd odon odoo odor odot odou odtu odur ogod ogog ogon ogou ogro ogun ondo ongo ongu onno onod onon onor ont- onto onur onut oont oooo oord oort ordn ordo ordu orgn orgo orno oro- oron oror orot orro orto oto- otog oton otoo otor otro otto ottu otur oun- ound oung our- ourn ouro ourt out- outo ouu- rgtr rnnt rnod rnot rntd rnut rodd rodo rogg rogo rond rong rono ront rood roog roon roor root roro rort roru rotg rotn roto rotr rott roud roun rout rrrr rrun rtdt rtnd rudd rudo rugg rund rung runn runo runt rurd ruro ruru ruto rutt rutu ruud ruun tdor tndd tnut todd todo todt todu togo togr togt tong tonn tono tonu tood toon toor toot tord torg torn toro torr tort toru totd toto totr tott toug toun tour tout trng trno trod trog tron troo trot trou trtr trud trug trun trut truu tton tttt tudu tugg tugu tund tung tunn tuno tunu tuor turd turg turn turo turr turt turu tuto tutt tutu tuuo udon udoo udot udun uggo uggt ugod ugro ugur uguu undo ungo ungu unno unon unro unto unut uor- urdu urgu uro- uroo urun urur urut utor utto uttu utug uuno uuuu