dddd ddot ddpo dnpo dntp dntt dnut dod- dodd dodo dond donn dono donp donr dont dood doon doop door doot dopo dopp dopr dopt dord dorn doro dorp dorr dort doru dotd doto dott doud doun doup dour dout dpdt drno drod dron drop drot drou drup drut druu dtdp dtor dtot dttp dudd dudo dudu dunn duno dunt duo- duon dupo durn duro durt duru dutp duur duut n-up nddo ndnp ndnt ndop ndor ndpd ndpr ndut nnnn nnot nnpr nntn nodo nodu non- nonn nono nont nonu noo- noon nooo noop noor noot nor- nord norn noro norr nort not- noto nott noun noup nour nout nppd nprt nptn nron nrpn nrrd ntnd ntnu ntop ntpd ntru ntto nttr nudd nudo nunn nuno nunt nuon nurd nurn nurp nurr nurt nuru nutt nutu oddd odon odoo odop odor odot odou odrp odtu odur ondo onno onod onon onor onpt onpu ont- onto onup onur onut oont oooo oord oort ootp opo- opon opor oppo optn opto ordn ordo ordu orno oro- oron oror orot orro orto orup oto- oton otoo otor otpp otro otto ottu otur oun- ound our- ourn ouro ourt out- outo ouu- pdpn pdpr pnon pnot pnpo pnpp pnro pntd pntr pnup pod- podd podo podu pond pono ponp pont pood poon poop poor poot pop- popo popp popt porn poro porr port potd poto pott potu poud poun poup pour pout ppod pppd pppn pppo pppp ppru pptn pptt ppur prnd prnp pro- prod pron proo prop prot prou prpd prrd prtp prtr prud prut pruu ptop ptpd ptrd pudo pudu pund puno punt punu pupu pur- puro purp purr puru put- puto putt putu rndp rnnt rnod rnot rntd rntp rnut rodd rodo rond rono ront rood roon roop roor root ropo roro rort roru rotn roto rotr rott roud roun roup rout rpdp rpon rppn rptd rptn rrrr rrun rtdt rtnd rttp rudd rudo rudp rund runn runo runt rupp rupt rurd ruro rurp ruru ruto rutt rutu ruud ruun tdor tndd tnut todd todo todt todu tonn tono tonu tood toon toor toot top- topd topo topp topt topu tord torn toro torp torr tort toru totd toto totr tott toun toup tour tout tpdu tpon tppd tppp tppr tptp tptr tput trno trod tron troo trop trot trou trpn trpp trtr trud trun trut truu tton ttop tttt tudu tund tunn tuno tunu tuor tupo tupu turd turn turo turp turr turt turu tuto tutt tutu tuuo u-rp udon udoo udop udot udpd udun undo unno unon unop unro unto unut uor- updo upnp upon upor uppp uppu upto upup urdu uro- uroo urpo urun urup urur urut utor utpd utto uttu uuno uuuu