nron nrrc nrrl nuan nuca nuch nucu nuha null nuna nunc nung nunn nuno nuoc nuon nura nurc nurl nurn nurr nuru oaau oahu oall oara ocac ocal ocan occa occc occn ocga ocha oclc ocna ocon ocra ocrl ocro ocrr ocul ocur ogar ogla ogna ognl ogoa ogog ogon ogou ogra ogro ogun ohal ohan ohau ohcc ohgr ohho ohno ohoh ohra ohrn olac olah olan olar olca olcc olga olgc olgr olla ollo olog olon olor olur onah onal onan onar onc- onca onco onga ongo ongu onha onla onna onno onon onor onra onur ooaa oocr ooha ooho oola oolo oona oooh oooo oora orac orah oral oran orao orar orca orch orco orga orgn orgo orla orlo orlu orna ornc orno oro- oron oror orra orro ouac ouan oucc ouch ough oula oulu oun- ouna oung our- oura ourn ouro ouu- raag raan rac- raca racc rach raco racu raga ragg ragh rago ragu raha rahl rahn rahr rahu rala rall ralo rana ranc rang rann rano raoc raoh raol rara raro raua rauc raul raun rcac rccc rcga rcgc rcnl rcnr rcon rcrg rgan rhag rhau rhcg rhoa rhoc rhog rhoh rhon rhug rhun rlcg rlua rlug rnag rnal rnco rnhl roag roan roar roca rocc roch roco roga rogg rogh rogo roha rohl rohn rohr rohu rola roll rolo rona ronc rong rono roog rool roon roor rora rorc roro roru roua rouh roul roun rrah rrna rrrr rrun ruag ruah ruan ruca ruch ruga rugg rugh ruhh ruhl ruhn ruhr rula rull rulo runa runc rung runn runo rura rurc ruro ruru ruun uaca uang uaoc uarc uaru uaua ucal ucan ucar ucca ucha ucho ucla ucon ucrc ucua ugal ugao ugar ugcc ugcg uggo ugol ugra ugro ugur uguu uhcl uhna uhno uhoh uhuh ulaa ulan ular ulcc ulch ulco ulla ullo ullr ulna ulno ulo- uloc ulog ulua ulul unaa unac unal unan unar unau unca uncc uncg unch uncl unco unga ungo ungu unha unna unno unon unra unro uocc uolc uor- urac ural uran urao urau urca urch urga urgh urgu urho urla urna uro- uroa urol uroo urra urrh urun urur uulu uuno uuoc uuuu