dddd ddpo dod- dodd dodo dold doll dolo dolp dolu dood dool doop door dopo dopp dopr dord doro dorp dorr doru doud doul doup dour dpll drod drol drop drou drup druu dudd dudo dudu dull dulo dulu duo- dupo duro duru duul duur lddp lldp llll llod lloo llud lold loll lolo lood lool loop loor lopp lopu lord loro loud loul loup lour louu lpod lppl lprp lrdd lrpu lrrr ludd ludo lull lulu lupo lupu lurd luup oddd odoo odop odor odou odrl odrp odur ollo olor olur oold oolo oooo oord opo- opor oppo ordo ordu orlo orlu oro- oror orro orup ould oulu our- ouro ouu- pdpr plod ploo plop plou plpp plud plup plur pod- podd podo podu pold poll polo polu pood pool poop poor pop- popo popp poro porr poud poul poup pour pplo ppod pppd pppo pppp ppru ppur prlr pro- prod prol proo prop prou prpd prrd prud pruu pudo pudu pull pulo pulp pulu pupl pupu pur- purl puro purp purr puru rodd rodo rold roll rolo rolp rood rool roop roor ropo roro roru roud roul roup rpdp rrrr rudd rudl rudo rudp rull rulo rupp rurd ruro rurp ruru ruud u-rp udoo udop udpd ullo ullr ulo- ulul uor- updo uplo upor uppp uppu upup urdu uro- urol uroo urpo urup urur uulu uuuu