ngor ngou ngur nguu nheb nhnn nhon nhra nngn nnnn noaa noae noah noba nobo nobu noer noga nogg nogh nogo noha nohn noho non- nona none nong nonn nono nonu noo- noob noon nooo noor nor- nora norb nore norg norn noro norr nouh noun nour nrab nren nrna nron nuan nuba nube nuee nuer nuha nuna nune nung nunn nuno nuon nura nure nurn nurr nuru o-eo oaau oaer oahe oahu oara oare oban obba obbo obea oben ober oboe obon obor obra obre obrh obro obuh oegb oen- oeno oera oere ogae ogar ogb ogba ogbe ogea ogee ogen oger ogge ogna ogoa ogog ogon ogou ogra ogre ogro ogun ohan ohau ohba ohbe ohee ohen oher ohgr ohho ohne ohno ohob ohoh ohra ohre ohrn onab onah onan onar one- onea oneb onee oneg oneh oneo oner onga onge ongo ongu onha onna onne onno onon onor onra onue onur ooaa ooba oobe ooer ooha ooho oona oone oooh oooo oora oore orab orae orah oran orao orar orba orbb orbe orbo orbu ore- orea oreb oreg oreh oren oreo orer orga orge orgn orgo orhe orna orne orno oro- oroe oron oror orra orro orub ouan ouea ouen ouer ouge ough oun- ouna oune oung our- oura oure ourn ouro ouu- raab raag raan raba rabb rabe rabo rabu raeg raen raer raga rage ragg ragh rago ragu raha rahe rahn rahr rahu rana rane rang rann rano raob raoh rara rarb rare raro raua raub raue raun rbbb rbbr rbgh rboh rea- reae rean reao rear reau reba rebb rebe rebo rebu reeb reen rega rege regn rego regr regu reha rehb rehe rehn rena rene reng renn reno renu reog reou rera rere rerg rero reru reue reuu rgan rgba rgbe rhae rhag rhau rhbg rhea rheb rhee rhen rheo rhoa rhob rhog rhoh rhon rhue rhug rhun rnag rnbr roab roag roan roar rob- roba robb robe robo robu roea roeg roen roer roga roge rogg rogh rogo roha rohe rohn rohr rohu rona rone rong rono roob roog roon roor rora rore roro roru roua roub roue rouh roun rrah rrna rrrr rrun ruag ruah ruan ruba rubb rube rubu ruen ruer ruga ruge rugg rugh ruhe ruhh ruhn ruhr runa rune rung runn runo rura rure ruro ruru ruun uang uaru uaua ubar ubba ubbe ubbo uber ubon ubra ueba ueno ugab ugao ugar ugeo uggo ughe ugne ugra ugro ugur uguu uher uhna uhno uhoh uhuh unaa unan unar unau unbe uneb unee unen uner unga ungo ungu unha unna unne unno unon unra unro uone uor- uore uran urao urau urba urbe ure- urea ureh urga urge urgh urgu urho urna urne uro- uroa uroo urra urre urrh urun urur uuen uuno uuuu