dddd ddpo dfrf dmop dmpu dod- dodd dodo doff domm domo domp dood doof doom doop door dopo dopp dopr dord dorf dorm doro dorp dorr doru doud douf doum doup dour dpmo drod drof drom drop drou drum drup druu dudd dudo dudu duff dufu dumm dump duo- dupo duro duru duur fdom ffff ffrr fmod fofo fomo fomp food foof foom fopp for- ford form foro forr foud foup four fprf from frop frou frpd frum fudd fuff fufu fumo fuor fur- furm furo furr mddm mdmf mdmp mdop mdpp mdud mfdp mfor mfou mfrp mmdf mmfd mmff mmmd mmmm mmod mmor mmpr mmpu mmrf mmrp modd modo modu moff mofo mofu momo momu mood moop moor mopp mord morf moro moru moud mouf moup mour mppf mppp mprf mpro mprp mrdd mrmd mrud mudd mudu muff mufu mumm mumo mump mumu murd muro murr muru oddd odmr odom odoo odop odor odou odrp odum odur ofdr off- offo offr offu ofor omo- omoo omor omro omuo ooff oooo oord opo- opor oppo ordo ordu orff orfu ormo oro- orof orom oror orro orum orup ouff our- ouro ouu- pdmu pdpr pfff pffr pmmp pmmu pmpm pmpo pod- podd podo podu poff pomo pomp pomu pood poof poop poor pop- popo popp poro porr poud pouf poum poup pour ppod pppd pppo pppp pprf pprm ppru ppur pro- prod prof prom proo prop prou prpd prrd prrm prud pruf prum pruu pudo pudu puff pump pupu pur- puro purp purr puru rmrp rodd rodo roff rofo romd romm romo romp rood roof room roop roor ropo roro roru roud rouf roum roup rpdp rpof rrmp rrrr rrum rudd rudo rudp ruff rufo rumm rumo rump rupp rurd ruro rurp ruru ruud u-rp udoo udop udpd umff ummo umor uofm uofo uomo uor- updf updm updo upor uppp uppu upup urdu urff uro- urom uroo urpo urum urup urur uuuu