-hou dddd dfrf dhod dhor dhur dod- dodd dodo doff dohm dohr domm domo dood doof doom door dord dorf dorm doro dorr doru doud douf doum dour drod drof droh drom drou drum druu dudd dudo dudu duff dufu duhr duhu dumh dumm duo- duro duru duur fdom ffff ffrr fmod fofo fohr fomo food foof foom for- ford form foro forr foud four froh from frou frum fudd fuff fufu fumo fuor fur- furm furo furr hdod hdrm hfmd hhhh hhof hmmm hodh hodr hoff hofu hohm hoho hom- homo homr homu hood hoof hoom hoor hord horo horr houd houf hour hrod hrud hudd hudo hudu huff hufu huhu humf humh humm humo huor hurd huro hurr huru mddm mdmf mdud mfor mfou mhmm mhmr mhor mmdf mmfd mmff mmhm mmmd mmmh mmmm mmod mmor mmrf modd modh modo modu moff mofo mofu mohm moho mohr mohu momo momu mood moor mord morf moro moru moud mouf mour mrdd mrmd mrud mudd mudu muff mufu muhr muhu mumm mumo mumu murd muro murr muru oddd odmr odoh odom odoo odor odou odum odur ofdr off- offh offo offr offu ofor ohho ohoh ohum omo- omoo omor omro omuo ooff ooho oooh oooo oord ordo ordu orff orfu ormo oro- orof orom oror orro orum oudh ouff our- ouro ouu- rhod rhoh rhum rodd rodo roff rofo rohm rohr rohu romd romm romo rood roof room roor roro roru roud rouf rouh roum rrrr rrum rudd rudo ruff rufo ruhh ruhm ruhr rumm rumo rurd ruro ruru ruud udoh udoo uh-d uhoh uhuh umff ummo umor uofm uofo uomo uor- urdu urff urho uro- urom uroo urrh urum urur uuuu