dddd ddpo dnpo dod- dodd dodo dold doll dolo dolp dolu dond donn dono donp donr dood dool doon doop door dopo dopp dopr dord dorn doro dorp dorr doru doud doul doun doup dour dpll drno drod drol dron drop drou drup druu dudd dudo dudu dull dulo dulu dunn duno duo- duon dupo durn duro duru duul duur lddp lldp llll llod lloo llud lndn lold loll lolo lond lono lonr lood lool loon loop loor lopp lopu lord lorn loro loud loul loun loup lour louu lpod lppl lprp lrdd lron lrpu lrrr ludd ludo lull lulu lund lunn luno lupo lupu lurd luup n-up nddo ndnp ndop ndor ndpd ndpr nlrp nnnn nnpr nodo nodu nold noll nolo nolp non- nonn nono nonu noo- nool noon nooo noop noor nor- nord norn noro norr noul noun noup nour nppd nppl nron nrpn nrrd nrrl nudd nudo null nunn nuno nuon nurd nurl nurn nurp nurr nuru oddd odon odoo odop odor odou odrl odrp odur oldn ollo olon olor olur ondo onno onod onon onor onpu onup onur oold oolo oooo oord opo- opon opor oppo ordn ordo ordu orlo orlu orno oro- oron oror orro orup ould oulu oun- ound our- ourn ouro ouu- pdpn pdpr pldn plod plon ploo plop plou plpp plud plup plur pnld pnln pnnl pnon pnpo pnpp pnro pnup pod- podd podo podu pold poll polo polu pond pono ponp pood pool poon poop poor pop- popo popp porn poro porr poud poul poun poup pour pplo ppod pppd pppn pppo pppp ppru ppur prlr prnd prnp pro- prod prol pron proo prop prou prpd prrd prud pruu pudo pudu pull pulo pulp pulu pund puno punu pupl pupu pur- purl puro purp purr puru rndp rnld rnod rodd rodo rold roll rolo rolp rond rono rood rool roon roop roor ropo roro roru roud roul roun roup rpdp rpon rppn rrrr rrun rudd rudl rudo rudp rull rulo rund runn runo rupp rurd ruro rurp ruru ruud ruun u-rp udon udoo udop udpd udun ullo ullr ulno ulo- ulul undo unlp unno unon unop unro uor- updo uplo upnp upon upor uppp uppu upup urdu uro- urol uroo urpo urun urup urur uulu uuno uuuu